US3525215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter piston machine,preferably counter piston motor with hydraulic driving mechanism
Assignee: Fried Krupp AG
•
Filing: 1968-07-22
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Granted: 1970-08-25
•
Expires: 1988-07-22
Abstract
No abstract record available.
Inventors
- 👤 Hans-Joachim Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:40
CPC Classifications
F; F16; F16H; F16H43/00; F01; F01B; F01B1/00; F01B1/08; F01B11/00; F01B11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3031972A
Cited
US3024591A
Cited
US3085392A
Cited
US3066476A
Cited
US3119230A
Cited
US3073108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |