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:
Oct. 12, 1999
Filed:
Aug. 29, 1997
Applicant:
Inventors:
Sumner A Barenberg, Chicago, IL (US);
Peter N Gray, Chicago, IL (US);
Michael Lelah, Chicago, IL (US);
Assignee:
Bernard Technologies, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L / ;
U.S. Cl.
CPC ...
428402 ; 428352 ; 428353 ; 428354 ; 42840224 ; 428403 ; 428407 ; 106 1405 ; 106 1421 ; 106 1505 ; 422-5 ; 422-9 ; 424 761 ; 424 762 ; 424 7621 ;
Abstract
A powder for sustained release of a gas including a core containing a molecular sieve, and a layer containing an acid releasing agent on an outer surface of the core. The core and the layer are substantially free of water, and the core is capable of generating and releasing a gas after hydrolysis of the acid releasing agent.