Patent US1021335A successfully refreshed from Google Patents.
Patent US3392680A successfully refreshed from Google Patents.
US3392680A
Expired / Lapsed
US
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Railway motor truck with bolster resiliently mounted
Assignee: Lukens General Industries Inc
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Filing: 1965-09-20
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Granted: 1968-07-16
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Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 Richard L Lich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:54
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/08; B61F3/00; B61F3/02; B61F3/04; B61F3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2099031A
Cited
US2184102A
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US2233541A
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US2211463A
Cited
US2321845A
Cited
US2925789A
Cited
US3277843A
Cited
US3313244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |