Molds and method of using the same for optical lenses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 5, 2017
Issued Date -
N/A
app pub date -
Oct 24, 2014
filing date -
Nov 18, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention encompasses, in part, a method and apparatus for lens casting in which two molds, preferably formed of plastic, are interconnected or joined together via a ring to form a mold cavity having substantially the same dimensions of the lens to be formed therein. The invention is further directed to compositions and methods used in lens casting. In a first implementation the invention includes a mold having a ring having an interior periphery; a front mold formed of a plastic and having a lens-forming surface, an edge circumscribing the lens-forming surface that is sized to be complementarily received within a portion of the interior periphery of the ring, and a base having dimensions greater than the interior periphery; and a rear mold formed of a plastic and having a lens-forming surface.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- B29C Class
- 4829 Applications Filed
- 3911 Patents Issued To-Date
- 80.99 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B29C Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 5, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 5, 2029 |
