US2980912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television antenna having multi-band elements
Assignee: CHANNEI MASTER Corp
•
Filing: 1955-04-22
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Granted: 1961-04-18
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Expires: 1975-04-22
Abstract
No abstract record available.
Inventors
- 👤 Warner H Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:39
CPC Classifications
H; H01; H01Q; H01Q5/00; H01Q5/40; H01Q5/48; H01Q5/49
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2283938A
Cited
US2535298A
Cited
US2648768A
Cited
US2533529A
Cited
US2705283A
Cited
US2700105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |