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. 06, 2023
Filed:
Apr. 22, 2020
Applicant:
University of Southampton, Southampton, GB;
Inventor:
Francesco Poletti, Southampton, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); B29D 11/00 (2006.01); C03B 23/07 (2006.01); C03B 37/012 (2006.01); C03B 37/027 (2006.01);
U.S. Cl.
CPC ...
G02B 6/02304 (2013.01); B29D 11/00721 (2013.01); C03B 23/076 (2013.01); C03B 37/01211 (2013.01); C03B 37/02781 (2013.01); G02B 6/02328 (2013.01);
Abstract
A shaped tube () for use as a component in the fabrication of an antiresonant hollow core optical fibre, the shaped tube having a side wall with a transverse cross-sectional shape comprising a number of major curved portions () alternating with the same number of minor substantially straight portions (), each curved portion () having an inwardly curving shape, and each straight portion () being equidistant from a central longitudinal axis of the shaped tube ().