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. 12, 1987
Filed:
Sep. 04, 1985
Applicant:
Inventor:
James F Drake, Jr, Minneapolis, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604891 ; 604 49 ; 102502 ; 102512 ;
Abstract
Ballistic projectiles for subsonic propulsion having a helically twisted body portion nad a tapered nose portion and having an apparent density of up to 5 g/cm.sup.3. The projectiles can be propelled through barrels having a complementary barrel without objectionable fouling.