US2948915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic hold open mechanism for hinged members
Assignee: MOORE DROP FORGING CO Inc
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Filing: 1957-07-15
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Granted: 1960-08-16
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Expires: 1977-07-15
Abstract
No abstract record available.
Inventors
- 👤 Robert W Vose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:03
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/30; E05C17/305
Claims Analysis
Total Claims: 0
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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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |