Patent US3531805A successfully refreshed from Google Patents.
US3531805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High gain all channel television antenna
Assignee: Winegard Co
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Filing: 1968-06-28
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Granted: 1970-09-29
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Expires: 1988-06-28
Abstract
No abstract record available.
Inventors
- 👤 John R Winegard
- 👤 Carey W Shelledy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:43
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1207; H01Q1/1228; H01Q19/00; H01Q19/28; H01Q19/30; H01Q5/00; H01Q5/40; H01Q5/48; H01Q5/49
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |