Set of spectacle lens semifinished products, apparatus for making spectacle lenses and method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 15, 2017
Issued Date -
N/A
app pub date -
Oct 31, 2016
filing date -
Jul 10, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A set of eyeglass lens semifinished products is provided and is composed of at least three series of eyeglass lens semifinished products having spherical or rotationally symmetric aspherical front surfaces. The series of eyeglass lens semifinished products differ in pairs in the base material of the series. Each of the series includes at least three types of eyeglass lens semifinished products which differ in pairs and the front surface shapes. The front surface shapes of the at least three types are identical on a central partial surface within the actual surface refractive power range of the front surface of the series in relation to a standard index of refraction of 1.53 between 3.2 D and 6.7 D.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- G02C Class
- 697 Applications Filed
- 511 Patents Issued To-Date
- 73.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G02C Class
- 21.26 % 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 | Feb 15, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 15, 2029 |
