US3012404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic support
Assignee: Rheinstahl Wanheim GmbH
•
Filing: 1956-12-13
•
Granted: 1961-12-12
•
Expires: 1976-12-13
Abstract
No abstract record available.
Inventors
- 👤 Wilkenloh Wilhelm
- 👤 Jaeger Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:02
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/12; F04B53/122; E; E21; E21D; E21D15/00; E21D15/14; E21D15/44; E21D15/45; E21D15/60; E21D15/603; E21D23/00; E21D23/006; E21D23/0069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US16801A
Cited
US205674A
Cited
US868868A
Cited
US1624151A
Cited
US1656430A
Cited
US1745067A
Cited
US2119440A
Cited
US2621631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |