US3413476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light beam controlling system
Assignee: AT&T Inc
•
Filing: 1964-06-23
•
Granted: 1968-11-26
•
Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene I Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/78; G; G02; G02F; G02F1/00; G02F1/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3177770A
Cited
US3290619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |