US3452702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle propulsion system
Assignee: FMC Corp
•
Filing: 1967-09-05
•
Granted: 1969-07-01
•
Expires: 1987-09-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Slemmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:55
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0007; B60G; B60G2200/00; B60G2200/10; B60G2200/13; B60G2200/132; B60G2300/00; B60G2300/07; B60G2300/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |