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:
Dec. 11, 1984
Filed:
Mar. 23, 1981
Applicant:
Inventor:
Akira Fujitsuka, Amagasaki, JP;
Assignee:
Alna Koki Co., Ltd., Amagasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ; E05F / ;
U.S. Cl.
CPC ...
160102 ; 49116 ;
Abstract
A vertically slidable window comprises two upper and lower sashes to open and close the window opening. The vertical side members of the upper sash and the vertical side members of the lower sash are provided with toothed rack members opposed to each other and pinions are installed between each pair of rack members to mesh with the latter, so that the upper and lower sashes can be raised and lowered in interlocked relation.
Fujitsuka, Akira. (1984). Vertically slidable window (U.S. Patent No. 4487242). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4487242
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile