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:
Nov. 27, 1990
Filed:
Nov. 10, 1988
Richard R Carlson, Minneapolis, MN (US);
Nelson E Malwitz, Brookfield, CT (US);
Benjamin H Hill, St. Paul, MN (US);
Philip J Martin, Hickory, NC (US);
Cortec Corporation, St. Paul, MN (US);
Abstract
A product for inhibiting corrosion of corrodible items within closed containers which comprises a powdered solid composition capable of producing and releasing a vapor phase corrosion inhibiting compound. The powdered composition is enclosed within a sealed envelope which is formed of a sheet material impermeable to the powdered composition, but which is porous to the released vapor phase corrosion inhibiting compound released from the powdered composition. The vapor phase corrosion inhibiting compound produced and released by the powdered composition migrates through the sheet material and permeates the environment of a closed container of corrodible items.