Patent US2335286A successfully refreshed from Google Patents.
Patent US3421097A successfully refreshed from Google Patents.
US3421097A
Expired / Lapsed
US
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Laser amplifier having angularly disposed reflection reducing end surface
Assignee: American Optical Corp
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Filing: 1963-03-25
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Granted: 1969-01-07
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Charles J Koester
- 👤 Elias Snitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:01
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/063; H01S3/067; H01S3/06754; H01S3/06708
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2825260A
Cited
US3056031A
Cited
US3059117A
Cited
FR1323829A
Cited
US3241085A
Cited
US3162822A
Cited
US3179899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |