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:
May. 28, 1991
Filed:
Aug. 08, 1989
Mitsubishi Gas Chemical Co., , JP;
Abstract
The present invention provides a method of producing a gas-permeable parcelling film for use in a container for isolating a product to be preserved from a freshness keeping agent placed within the container. The parcelling film has a gas-permeable formed member which is obtained by subjecting plastic fibers to a paper-making process and a drying process to obtain a dried sheet of plastic fibers, and then subjecting the dried sheet to a forming process into the formed member. The parcelling film is impregnated with fluororesin, before being subjected to the forming process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile