US2942259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broad band television antenna
Assignee: Channel Master Corp
•
Filing: 1956-10-03
•
Granted: 1960-06-21
•
Expires: 1976-10-03
Abstract
No abstract record available.
Inventors
- 👤 Green Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:20
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/16; H01Q5/00; H01Q5/40; H01Q5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US930746A
Cited
US1868795A
Cited
US2048726A
Cited
US2281429A
Cited
US2611086A
Cited
US2558145A
Cited
US2640933A
Cited
US2686873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |