US3061673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo system for light level control
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1959-02-05
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Granted: 1962-10-30
•
Expires: 1979-02-05
Abstract
No abstract record available.
Inventors
- 👤 George H Fathauer
- 👤 James E Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:06
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/70; H04N23/75; H05; H05B; H05B33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2431824A
Cited
US2403628A
Cited
US2875276A
Cited
US2898536A
Cited
US2863107A
Cited
US2861232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |