Patent US2908000A successfully refreshed from Google Patents.
US2908000A
Expired / Lapsed
US
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Notch antenna
Assignee: JOHN S LACEY
•
Filing: 1949-04-08
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Granted: 1959-10-06
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Expires: 1969-04-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph O Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:50
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/286; H01Q1/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2487622A
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US2543130A
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US2652492A
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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) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |