US2641070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless conveyer ditching machine
Assignee: Individual
•
Filing: 1948-04-01
•
Granted: 1953-06-09
•
Expires: 1968-04-01
Abstract
No abstract record available.
Inventors
- 👤 Robert N Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/08; E02F3/082; Y; Y10; Y10S; Y10S74/00; Y10S74/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1038915A
Cited
US1762568A
Cited
US1892881A
Cited
US2231983A
Cited
US2393324A
Cited
US2446242A
Cited
US2519077A
Cited
US2524206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |