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. 07, 1991
Filed:
Sep. 29, 1989
Applicant:
Inventors:
Ernest B Hayes, Leighton Buzzard LU7 7JR, Bedfordshire, GB;
Paul F Clarke, South Shields, Tyne & Wear, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24D / ; A24D / ; A24D / ;
U.S. Cl.
CPC ...
131341 ; 131342 ; 131343 ; 131344 ; 493 47 ; 493 49 ;
Abstract
A tobacco smoke filter comprising a rod of tobacco smoke filtering material incorporating particulate additive, wherein at least some of the particulate additive is concentrated on one or a restricted number of threads and/or strips incorporated within the remaining body of filtering material, the additive adhering to said thread(s) and/or strip(s).
Hayes, Ernest. (1991). Tobacco smoke filter containing particulate additive (U.S. Patent No. 5012828). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5012828
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile