Watch crystal including a lens and manufacturing method for such a lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 18, 2002
Grant Date -
N/A
app pub date -
Mar 24, 1999
filing date -
Apr 2, 1998
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Forward Citations
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Abstract
The invention concerns a watch crystal (1) made of hard mineral material, in particular a crystalline material such as corundum, sapphire or spinel, including a non-circular optical lens (4) shaped in the thickness of the material of the crystal. The lens is formed by machining and polishing a recess (5) preferably situated in the lower face (3) of the crystal. Its contour can have reentering angles, and can be for example rectangular. The machining is effected by means of a brush which hits the bottom of the recess with the addition of a polishing medium.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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COMADUR S A | SWISS LOCO LE LOCLE NEUCHATEL |
International Classification(s)

- 1999 Application Filing Year
- G04B Class
- 148 Applications Filed
- 70 Patents Issued To-Date
- 47.30 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Delabre, Guy | Portalban, CH | 2 | 59 |
# of filed Patents : 2 Total Citations : 59 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 49 Citation Count
- G04B Class
- 95.79 % this patent is cited more than
- 23 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Mar 27, 2023 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 27, 2023 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 17, 2023 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 17, 2023 |
Oct 10, 2022 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 13, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Feb 17, 2015 | I | Issuance | |
Jan 27, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 11, 2009 | P | Published | |
Jan 31, 2008 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GLASL, SEBASTIAN;ADLHOCH, CHRISTIAN;SCHULZ, HORST-MARTIN;AND OTHERS;REEL/FRAME:020449/0769;SIGNING DATES FROM 20070706 TO 20070821 Owner name: WEBASTO AG, GERMANY free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GLASL, SEBASTIAN;ADLHOCH, CHRISTIAN;SCHULZ, HORST-MARTIN;AND OTHERS;SIGNING DATES FROM 20070706 TO 20070821;REEL/FRAME:020449/0769 Owner name: WEBASTO AG, GERMANY |
Nov 07, 2005 | F | Filing | |
Nov 19, 2004 | PD | Priority Date |

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