Patent US3400809A successfully refreshed from Google Patents.
Patent US2885016A successfully refreshed from Google Patents.
US2885016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for electric drive vehicle with auxiliary pump
Assignee: Doosan Bobcat North America Inc
•
Filing: 1953-09-22
•
Granted: 1959-05-05
•
Expires: 1973-09-22
Abstract
No abstract record available.
Inventors
- 👤 Edgar H Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:07
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/20; B66F9/24; B60; B60K; B60K1/00; B66F9/07595
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1216237A
Cited
US1585351A
Cited
US1745532A
Cited
US1799096A
Cited
US2434413A
Cited
US2653841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |