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:
Nov. 22, 1988
Filed:
Jun. 01, 1987
Applicant:
Inventor:
Kirk K Hwang, Woodbury, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264-14 ; 249102 ; 249120 ; 249139 ; 264-22 ; 264 85 ; 4251 / ; 425454 ; 425472 ; 425808 ;
Abstract
An apparatus and method is described which is useful in manufacturing molded optical devices. The apparatus and method provide automatic alignment of the mold elements so that cylinder and prism free lenses are provided.
Hwang, Kirk. (1988). Method and apparatus for making optical devices (U.S. Patent No. 4786444). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4786444
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile