US3493894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplitude and phase-locking of laser transitions by self-driven parametric interaction
Assignee: AT&T Inc
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Filing: 1967-08-21
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Granted: 1970-02-03
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Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Chandra K N Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:15
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1106; H01S3/1109; H01S3/106; H01S3/1063; H01S3/107; H01S3/1123; H01S3/121; H01S3/123; H01S3/14; H01S3/22; H01S3/223; H01S3/2232
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3412251A
Cited
US3371220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |