Method for forming optical elements having an optical coating by replication of a mold
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 3, 1992
Issued Date -
N/A
app pub date -
Aug 28, 1991
filing date -
Dec 5, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method for forming an optical element having an optical coating thereon by replication having the steps of preparing first and second molds having polished surfaces which are to be replicated, depositing a soluble inorganic salt to form a release layer, depositing an optical coating in reverse order upon the release layer, supplying liquid material between the molds and in contact with the optical coating, causing the liquid material to solidify and form a bond with the optical coating, separating the molds from the solidified material with the optical coating adherent to the solidified material with separation occurring between the mold and the optical coating in the parting layer and removing any remaining portions of the parting layer from the optical coating.
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 | |
---|---|---|
OPTICAL COATING LABORATORY INC | SANTA ROSA CALIFORNIA 95407-7397 |
International Classification(s)

- 1991 Application Filing Year
- B29D Class
- 169 Applications Filed
- 83 Patents Issued To-Date
- 49.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Imus, Mark H | Sausalito, CA | 1 | 25 |
# of filed Patents : 1 Total Citations : 25 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 25 Citation Count
- B29D Class
- 0 % this patent is cited more than
- 33 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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Dec 01, 2004 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Nov 03, 2004 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Nov 03, 2004 |
Nov 03, 2004 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 19, 2004 | REMI | MAINTENANCE FEE REMINDER MAILED | |
May 02, 2000 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Dec 02, 1999 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 15, 1996 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 03, 1992 | I | Issuance | |
Aug 28, 1991 | F | Filing | |
Dec 05, 1989 | PD | Priority Date |

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