Patent US3376830A successfully refreshed from Google Patents.
US3376830A
Expired / Lapsed
US
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Railway vehicle suspension system
Assignee: Individual
•
Filing: 1965-07-16
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Granted: 1968-04-09
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Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Sidney H Bingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:04
CPC Classifications
B; B61; B61F; B61F9/00; B60; B60G; B60G21/00; B60G21/02; B60G21/06; B60G21/073; E; E01; E01B; E01B25/00; E01B25/08; E01C; E01C9/00; E01C9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2226432A
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US2404091A
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US2474471A
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US2861523A
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US3012521A
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US3014434A
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US3084637A
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US3208402A
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US3148632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |