US3491733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant charging of internal combustion engines
Assignee: Construction Et D'exploitation De Materiels Et Moteurs Scemm soc
•
Filing: 1967-11-13
•
Granted: 1970-01-27
•
Expires: 1987-11-13
Abstract
No abstract record available.
Inventors
- 👤 Jean-Pierre Soubis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:21
CPC Classifications
F; F02; F02M; F02M1/00; F02B; F02B2275/00; F02B2275/14; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4392
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) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |