Method for cutting watch crystals
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United States of America Patent
Stats
-
Jul 6, 2021
Grant Date -
Apr 18, 2019
app pub date -
Aug 17, 2018
filing date -
Oct 16, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for cutting watch crystals along a plurality of contours in a plate of transparent material includes forming a first cut line or kerf to form a first chamfer for each of the crystals of the plate and marking at least one machined recess on a first side of the plate, turning the plate over and marking at least one of the position of the first chamfer and the position of the at least one machined recess, forming a second cut line or kerf to form a second chamfer for each of the crystals on a second side of the plate, and separating the crystals by machining through the plate at each of the contours to form edges of the crystals.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2018 Application Filing Year
- B24B Class
- 755 Applications Filed
- 524 Patents Issued To-Date
- 69.41 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B24B Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jan 6, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 6, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 6, 2033 |
