The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 1982
Filed:
May. 21, 1980
Thomas H Sadler, Littleton, CO (US);
Manville Service Corporation, Denver, CO (US);
Abstract
The present invention relates to hydrothermally cured articles of manufacture and the processes for making the same. In the past, calcium carbonate has been included in such articles and processes a number inert filler materials to alter physical characteristics, appearance, etc. The present invention comprises incorporating crystalline calcium carbonate, preferably in the form of powdered marble, with the normal constituents to dilute the relative amounts of these constituents and thus make a more economic blend without substantial degradation to the physical characteristics of the article of manufacture incorporating such crystalline calcium carbonate.