US2554561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction shock absorbing mechanism
Assignee: W H MINER Inc
•
Filing: 1945-02-21
•
Granted: 1951-05-29
•
Expires: 1965-02-21
Abstract
No abstract record available.
Inventors
- 👤 George E Dath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:42
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US707820A
Cited
GB191404120A
Cited
US1337003A
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US1442893A
Cited
US1989157A
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US2079088A
Cited
US2077966A
Cited
US2331458A
Cited
US2335847A
Cited
US2421075A
Cited
US2452108A
Cited
US2423876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |