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. 11, 1988
Filed:
Jun. 24, 1986
Applicant:
Inventors:
William W Stevenson, Lake Elmo, MN (US);
Joseph Graham, New Hope, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A24D / ;
U.S. Cl.
CPC ...
131352 ; 131349 ; 131365 ;
Abstract
Smoking articles, such as cigarettes and little cigars, having self-extinguishing properties when laid on a flat surface yet will not extinguish when held in the hand or placed in an ashtray, are disclosed. The tobacco filler composition of the smoking articles is modified by the addition thereto of a moisture stable alkali metal silicate, the preferred moisture stable alkali metal silicate being borate stabilized sodium silicate.
Stevenson, William. (1988). Smoking articles (U.S. Patent No. 4776355). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4776355
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile