Patent US2578045A successfully refreshed from Google Patents.
US2578045A
Expired / Lapsed
US
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Fly tying device
Assignee: Individual
•
Filing: 1950-01-06
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Granted: 1951-12-11
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Expires: 1970-01-06
Abstract
No abstract record available.
Inventors
- 👤 John S Conrad
- 👤 Othmar C Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:12
CPC Classifications
A; A01; A01K; A01K97/00; A01K97/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1047601A
Cited
US1277553A
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US1293383A
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US1524935A
Cited
US1683803A
Cited
US1814703A
Cited
US2487625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |