Patent US3471408A successfully refreshed from Google Patents.
US3471408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laserable material
Assignee: American Optical Corp
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Filing: 1965-10-04
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Granted: 1969-10-07
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Robert W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:48
CPC Classifications
C; C03; C03C; C03C4/00; C03C4/0071; C03C3/00; C03C3/04; C03C3/076; C03C3/095; H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |