Patent US3043282A successfully refreshed from Google Patents.
US3043282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-piston engine
Assignee: Individual
•
Filing: 1960-07-28
•
Granted: 1962-07-10
•
Expires: 1980-07-28
Abstract
No abstract record available.
Inventors
- 👤 Janicke Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:09
CPC Classifications
F; F02; F02B; F02B71/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2145429A
Cited
US2287702A
Cited
US2447513A
Cited
US2473204A
Cited
US2726680A
Cited
US2793630A
Cited
US2919685A
Cited
US2976860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |