US1981859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control for internal combustion engines
Assignee: MONITOR CONTROLLER Co
•
Filing: 1932-07-25
•
Granted: 1934-11-27
•
Expires: 1952-07-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Frese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:32
CPC Classifications
F; F01; F01L; F01L1/00; F01L13/00; F01L2710/00; F01L2710/006
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) | 1937-11-26 | 1938-05-28 | 1938-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-26 | 1942-05-28 | 1942-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-26 | 1946-05-28 | 1946-11-27 | $7700.00 | Window Closed / Lapsed |