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. 17, 2003
Filed:
Feb. 29, 2000
Wayne F. Varner, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method for making a highly birefringent optical fiber includes providing a preform with a substantially circular cross section. The preform includes a core region having a substantially circular cross section and a substantially elliptical cladding region adjacent the core region. The outer surface of the preform is modified to create a shaped preform with a non-circular cross section. The shaped preform is then drawn at a temperature and draw rate sufficient to provide an optical fiber with the non-circular cross section of the shaped preform.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile