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:
Mar. 05, 1991
Filed:
Feb. 08, 1990
Applicant:
Inventors:
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9623 ;
Abstract
An optical fiber unit suitable for installation by the force of a fluid flowing through a passage. The unit includes at least one optical fiber and at least one interstitial cord. The fibers and cords are of the same diameter. They are bundled and surrounded by a first sheath that is formed of a material having a high Young's modulus. An outer sheath, of foamed polyethelene surrounds the first sheath.
Sano, Hiroaki. (1991). Optical fiber adapted for air blown fiber installation (U.S. Patent No. 4997256). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4997256
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile