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:
Jun. 01, 1993
Filed:
Nov. 06, 1990
Toshio Oku, Tokyo, JP;
Machida Endoscope Co., Ltd., Tokyo, JP;
Abstract
A direct vision/side vision exchangeable endoscope having two stages of small-diameter and large-diameter threads differing in their diameter are formed on the distal end of the examining portion of the endoscope. A threaded portion to be engaged with the small-diameter thread is formed on the inner side of the rear end of an attachment, and flanges are formed in the vicinity of both ends of the attachment, and an anchoring ring having a thread to be engaged with the large-diameter thread, formed on the inner side of the top end thereof, and an anchoring portion for anchoring the flanges, formed on the inner side of the rear end thereof, is freely set between both the flanges of the attachment.