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:
Oct. 03, 2000
Filed:
Sep. 03, 1997
Applicant:
Inventor:
Carole Sedlock, Minneapolis, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
451390 ; 451 41 ; 451364 ; 451384 ; 451389 ; 451390 ; 451398 ; 451460 ;
Abstract
The present invention provides novel preformed base blocks that may be used with thermoplastic ophthalmic lens blocking compositions. The preformed base block has a rear portion that is sized and adapted to fit the chuck of a lens processing machine and a front portion that has a textured front surface and preferably a negatively tapered peripheral edge. The front portion is adapted to mechanically retain the thermoplastic blocking composition to form a lens block against a lens blank.
Quick Actions:
Sedlock, Carole. (2000). Preformed ophthalmic lens base block with textured surface (U.S. Patent No. 6126528). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6126528
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile