US2919685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the stabilization of free-piston machines
Assignee: Joy Manufacturing Co
•
Filing: 1955-08-24
•
Granted: 1960-01-05
•
Expires: 1975-08-24
Abstract
No abstract record available.
Inventors
- 👤 Erich A Wachsmuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:49
CPC Classifications
F; F02; F02B; F02B71/00; F02B71/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1596194A
Cited
US1883980A
Cited
US2090781A
Cited
US2090709A
Cited
US2435970A
Cited
US2473204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |