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US2770918A
Expired / Lapsed
US
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Electro-mechanical bird device
Assignee: Individual
•
Filing: 1953-06-25
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Granted: 1956-11-20
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Expires: 1973-06-25
Abstract
No abstract record available.
Inventors
- 👤 Polk William Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:47
CPC Classifications
A; A63; A63H; A63H13/00; A63H13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE447966C
Cited
US1239040A
Cited
GB299742A
Cited
US1782042A
Cited
US2576209A
Cited
US2637937A
Cited
US2637938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |