US3393381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iterative light frequency modulator
Assignee: Westinghouse Electric Corp
•
Filing: 1965-01-21
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Granted: 1968-07-16
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Leslie D Thomas
- 👤 Michael A Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:22
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/50; G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/0344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |