US2563243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indoor television antenna
Assignee: JOSEPH N MARKS
•
Filing: 1949-05-10
•
Granted: 1951-08-07
•
Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Elmer G Hills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:39
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/14; H01Q9/16; H01Q9/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2177416A
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US2311364A
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US2293112A
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US2272608A
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US2324462A
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US2419577A
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US2492989A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |