US2204584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for shellfish dredging
Assignee: Individual
•
Filing: 1936-12-23
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Granted: 1940-06-18
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Expires: 1956-12-23
Abstract
No abstract record available.
Inventors
- 👤 Flower Harry Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:37
CPC Classifications
A; A01; A01K; A01K80/00; E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/92; E02F7/00; E02F7/06; E02F7/065; F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/063
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) | 1943-06-18 | 1943-12-18 | 1944-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-06-18 | 1947-12-18 | 1948-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-06-18 | 1951-12-18 | 1952-06-18 | $7700.00 | Window Closed / Lapsed |