Patent US3022585A successfully refreshed from Google Patents.
US3022585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trenching machine drive transmission
Assignee: EARTH EQUIPMENT CORP N
•
Filing: 1959-09-11
•
Granted: 1962-02-27
•
Expires: 1979-09-11
Abstract
No abstract record available.
Inventors
- 👤 William J Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:14
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/08; E02F3/086; E02F3/082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US428886A
Cited
US940752A
Cited
US1050361A
Cited
US1108268A
Cited
US1531755A
Cited
US1733427A
Cited
US1866037A
Cited
US2084887A
Cited
US2737733A
Cited
US2762137A
Cited
US2777219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |