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Process for waterproofing gypsum materials

The invention provides a process for water-proofing gypsum materials which comprises adding, to a pulverulent gypsum plaster composition containing from 10 to 90% by weight of gypsum based on the total weight of the composition, a mixture of a) from 10 to 15% by weight, based on the total weight of the composition, of one or more dispersion powders redispersible in water and based on vinyl ....

United States patent law

Patent applications can be filed at the United States Patent and Trademark OfficeThe application process is somewhat slow and generally expensive Estimate $10,000 to $30,000 in filing and legal fees, and about 3 years from filing the application to the issue date...

Help Center | FPO Resources

When and how is a patent granted? In the United States a utility patent is granted to the first inventor of a novel process, machine, article of manufacture, composition, or a "new use" of one of these There is a three-part test which determines if an invention is patentable The tests are: Is the invention useful?...

35 US Code § 287

35 US Code § 287 Limitation on damages and other remedies; marking and notice , a person who obtains a product made by a process patented in the United States in a quantity which is abnormally large in relation to the volume of business of such person or an efficient inventory level shall be , Section 9006 of the Process Patent ....

Patent application

A patent application is a request pending at a patent office for the grant of a patent for an invention described in the patent specification and a set of one or more claims stated in a formal document, including necessary official forms and related correspondence It is the combination of the document and its processing within the administrative and legal framework of the patent office...

US Patent for Process for easy

Process for the easy-care finishing of cellulosics involving low formaldehyde release, wherein the cellulosics, after having been impregnated with a solution of aminoplast-forming substances and dried, are sprayed with a solution of urea...

Patent Eligibility Requirements FAQ

Before applying for a patent, you research your invention's patentability and whether the invention meets the patent eligibility requirements of the US Patent and Trademark Office (USPTO) This article covers the basics patent eligibility requirements See 's Patents section to learn more What are the Basic Requirements for a Patent?...

LESS DUSTY GRANULAR GYPSUM PRODUCT AND PROCESS

LESS DUSTY GRANULAR GYPSUM PRODUCT AND PROCESS (PAT - US3820970) WATKINS K GYPSUM CO,US Patent: United STATES Patent - United Stat Application: US19720319090 on 1972-12-27 Publication: 1974-06-28 Abstract Highlight ,...

Low Weight And Density Fire

Thank you for viewing the Low weight and density fire-resistant gypsum panel patent info - - - Results in 004867 seconds ### Data source: patent applications published in the public domain by the United States Patent and Trademark Office (USPTO) Information published here ,...

Method (patent)

In United States patent law, a method, also called "process", is one of the four principal categories of things that may be patented through "utility patents"The other three are a machine, an article of manufacture (also termed a manufacture), and a composition of matter In that context, a method is a series of steps for performing a function or accomplishing a result...

An Overview of the US Patent Process

Mar 15, 2014· The patent process actually starts well before you file a , At the US Patent Office you are entitled to a single invention in an application One fee for one invention If there is more than one ....

Lump process alpha gypsum

Jan 05, 1982· Lump process alpha gypsum United States Patent 4309391 Abstract: An improved "lump" process for producing alpha gypsum, calcium sulfate hemihydrate, from natural gypsum rock of the type wherein lumps of gypsum rock particles (a minimum of about 1/2 inch or 13 cm in size) are calcined to low water-demand alpha hemihydrate by autoclaving in ....

Patents by Inventor Jean

Patents by Inventor Jean-Paul Lecomte , This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO) , The present invention relates to hydrophobic gypsum and to a process for making gypsum hydrophobic, in particular it relates to a ....

The US Patent Application Process Flow Chart

Jan 06, 2017· Seeking a patent is not a file it and forget it endeavor Instead, it involves a process where work is likely required in multiple phas The process of obtaining a utility patent in the US generally involves novelty searching, application drafting, waiting for the patent office to review the application, and negotiating with the , Continue reading "The US Patent Application Process Flow Chart"...

Process monitor for gypsum board manufacturing

Process monitor for gypsum board manufacturing (PAT - US6045730) ' ' POTTER JOSEPH T Patent: United STATES Patent - United Stat Application: US19980025315 on 1998-02-18 Publication: 2000-04-04 Abstract The temperature and/or moisture profile over time of gypsum boards is monitored as the boards harden, to facilitate effective curing of ....

Patents by Inventor Douglas A Wicks

Sep 11, 2017· Patents by Inventor Douglas A Wicks , This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO) , a process for converting gypsum into precipitated calcium carbonate including providing a mixture comprising i) gypsum ii) a seed, a ....

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