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:
Apr. 10, 1984
Filed:
Oct. 23, 1981
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ;
U.S. Cl.
CPC ...
418 55 ; 418150 ;
Abstract
A scroll member including a wrap having its thickness boundaries defined by an outer side wall surface and an inner side wall surface, wherein the inner side wall surface of the wrap includes a starting end portion formed to coincide with an arc of a circle having a predetermined radius.
Ikegawa, Masato. (1984). Scroll member (U.S. Patent No. 4441870). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4441870
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile