US2544491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock damper for electromagnetic devices
Assignee: Goodrich Corp
•
Filing: 1949-02-25
•
Granted: 1951-03-06
•
Expires: 1969-02-25
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:31
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/088; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/30; H01H50/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE218484C
Cited
US1011662A
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US1230934A
Cited
US1552375A
Cited
FR640233A
Cited
DE587821C
Cited
GB437679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |