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US2600274A
Expired / Lapsed
US
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Antenna
Assignee: Individual
•
Filing: 1945-10-10
•
Granted: 1952-06-10
•
Expires: 1965-10-10
Abstract
No abstract record available.
Inventors
- 👤 Sichak William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:01
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/02; H01Q19/021; H01Q19/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2061508A
Cited
US2170028A
Cited
US2287533A
Cited
US2270965A
Cited
US2281196A
Cited
US2350644A
Cited
US2421988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |