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:
Aug. 11, 1992
Filed:
May. 07, 1991
Eric G Lundquist, Hillsborough, CA (US);
Document Reprocessors, San Francisco, CA (US);
Abstract
This invention relates to a process for treating a printed cellulosic article for inhibiting acid promoted deterioration thereof comprising providing in a pressure vessel containing said article, a transport medium containing carbon dioxide, and base material dispersed in said medium for transport to said article said vessel being pressurized with said carbon dioxide to between about 650 and about 1200 psi and maintained for a sufficient treatment period to cause substantial pervasion of said base material in said article, and separating said medium from said article.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile