US2546583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic apparatus
Assignee: Denison Engineering Co
•
Filing: 1945-02-10
•
Granted: 1951-03-27
•
Expires: 1965-02-10
Abstract
No abstract record available.
Inventors
- 👤 Ellis H Born
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:15
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/10; F01B3/103; F01B3/104
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CH42384A
Cited
US1081810A
Cited
US1158554A
Cited
US1348738A
Cited
US1407047A
Cited
US1822064A
Cited
US1970133A
Cited
US2075017A
Cited
FR837540A
Cited
US2288768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |