US2978646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic alignment system
Assignee: RCA Corp
•
Filing: 1957-08-21
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Granted: 1961-04-04
•
Expires: 1977-08-21
Abstract
No abstract record available.
Inventors
- 👤 Charles C Shumard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:27
CPC Classifications
H; H03; H03J; H03J3/00; H03J3/02; H03J3/10; H03J1/00; H03J1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2252058A
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US2251064A
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US2376667A
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US2465531A
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US2727994A
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US2634373A
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US2766384A
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US2719270A
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US2753526A
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US2843747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |