US2856706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracklaying tractor with exchangeable working implements
Assignee: Individual
•
Filing: 1953-10-06
•
Granted: 1958-10-21
•
Expires: 1973-10-06
Abstract
No abstract record available.
Inventors
- 👤 Hacker Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:52
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/18; B; B62; B62D; B62D49/00; B62D49/02; E02F3/00; E02F3/04; E02F3/96; E02F9/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1597620A
Cited
US2468602A
Cited
US2625755A
Cited
US2445160A
Cited
US2482612A
Cited
US2606417A
Cited
US2660816A
Cited
FR1036696A
Cited
US2645369A
Cited
BE517119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |