Patent US3554616A successfully refreshed from Google Patents.
US3554616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Running gear for an endless track tractor
Assignee: Ch Traktorny Z
•
Filing: 1968-08-28
•
Granted: 1971-01-12
•
Expires: 1988-08-28
Abstract
Abstract A RUNNING GEAR FOR AN ENDLESS TRACK TRACTOR, IN WHICH THE SIDE EQUALIZERS ARE PIVOTABLY CONNECTED TO EACH OTHER AND TO THE TRACTOR FRAME, EACH OF SAID EQUALIZERS BEING MADE AS TWO LONGITUDINAL BEAMS INTERCONNECTED BY SPACERS. TRACK SUPPORT ROLLERS ARE MOUNTED ON THE BEAMS AND SPRUNG BY MEANS OF TORSION BARS.
Inventors
- 👤 Nikolai Alexandrovich Litvinov
- 👤 Boris Mikhailovich Pozin
- 👤 Vladimir Vasilievi Emelianenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:13
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/108; B62D55/1083; B62D55/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |