US2425408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frictional damping means for
Assignee: —
•
Filing: —
•
Granted: 1947-08-12
•
Expires: 1964-08-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:15
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04; G01R1/00; G01R1/02; G01R1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1951578A
Cited
US1982333A
Cited
US2291713A
Cited
US2356608A
Cited
US1263393A
Cited
US1750275A
Cited
US1952161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |