Patent US2767504A successfully refreshed from Google Patents.
US2767504A
Expired / Lapsed
US
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Depth control and rudder device for trolling
Assignee: Individual
•
Filing: 1955-11-10
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Granted: 1956-10-23
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Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Glenn F Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:56
CPC Classifications
A; A01; A01K; A01K73/00; A01K73/02; A01K73/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |