US3503671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-pass light-deflecting modulator
Assignee: AT&T Inc
•
Filing: 1967-04-17
•
Granted: 1970-03-31
•
Expires: 1987-04-17
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Kompfner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:43
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0662; G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3395960A
Cited
US3395365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |