US2645091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ditch forming and lining implement
Assignee: Individual
•
Filing: 1952-07-05
•
Granted: 1953-07-14
•
Expires: 1972-07-05
Abstract
No abstract record available.
Inventors
- 👤 Cecil H Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:52
CPC Classifications
E; E02; E02B; E02B5/00; E02B5/02; E01; E01C; E01C19/00; E01C19/48; E01C19/4866; E01C19/4873; E02F; E02F5/00; E02F5/02; E02F5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US992649A
Cited
US1201649A
Cited
US1213434A
Cited
GB436367A
Cited
US2224047A
Cited
US2320855A
Cited
US2625754A
Cited
US2598514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |