Patent US3033922A successfully refreshed from Google Patents.
US3033922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed circuit television system
Assignee: Individual
•
Filing: 1957-08-20
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Granted: 1962-05-08
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Expires: 1977-08-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Oren R Campbell
- 👤 Clair L Mc-Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:24
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/173; H04N7/17345; H04N7/17363; H04N2007/1739
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2237376A
Cited
US2189310A
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US2343046A
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US2510621A
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US2546338A
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US2542188A
Cited
US2607846A
Cited
FR995694A
Cited
US2816156A
Cited
US2843654A
Cited
US2833850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |