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:
Jan. 29, 2002
Filed:
Jul. 13, 1999
Applicant:
Inventors:
Audun Hordvik, Trondheim, NO;
Morten Eriksrud, Trondheim, NO;
Assignee:
Optoplan AS, Trondheim, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/44 ;
U.S. Cl.
CPC ...
G02B 6/44 ;
Abstract
Signal cable for transmission of optical signals, especially in oil and gas wells, includes at least one elongated optical fiber, and an elongated, generally tubular container within which the optical fiber is disposed, the container having an inner wall and an outer wall, a space being defined between the optical fiber and the inner wall. At least one of the inner wall and the outer wall has a thin continuous surface coating of gold or a gold alloy.