US3551841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film laser device employing an optical cavity
Assignee: US Philips Corp
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Filing: 1967-01-30
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Granted: 1970-12-29
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Expires: 1987-01-30
Abstract
No abstract record available.
Inventors
- 👤 Nicolas J Harrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:44
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/34; G; G01; G01N; G01N21/00; G01N21/17; G01N21/55; G01N21/552; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/063; H01S3/0632; H01S3/09; H01S3/091; H01S3/0915; H01S3/092; H01S3/093; H01S3/0635
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) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |