US2825427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic dashpot
Assignee: DUMORE CO
•
Filing: 1953-08-13
•
Granted: 1958-03-04
•
Expires: 1973-08-13
Abstract
No abstract record available.
Inventors
- 👤 James P Steibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:38
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/26; B23Q5/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US456016A
Cited
US1267532A
Cited
US1833121A
Cited
US1860756A
Cited
US2032189A
Cited
GB632497A
Cited
US2657595A
Cited
US2658588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |