Patent US2838953A successfully refreshed from Google Patents.
US2838953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated radio antenna
Assignee: Casco Products Corp
•
Filing: 1953-10-08
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Granted: 1958-06-17
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Expires: 1973-10-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Cone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:53
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; H01Q1/103; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20474; Y10T74/20516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US297407A
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US871110A
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US1764665A
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US1703613A
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US1788861A
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US1877765A
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US2294362A
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US2351535A
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US2384631A
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US2590484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |