US3089437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagonal brace for bulkhead flat cars
Assignee: Chicago Burlington and Quincy Railroad Co
•
Filing: 1961-02-02
•
Granted: 1963-05-14
•
Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 George W Hendricker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:21
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/001; B61D45/003; B61D17/00; B61D17/04; B61D17/06; B61D3/00; B61D3/08; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1188330A
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US1785342A
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US2038143A
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US2407091A
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US2826156A
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US2819688A
Cited
US2835522A
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US2845292A
Cited
US2978993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |