US2989929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulating gable-bottom cars
Assignee: Individual
•
Filing: 1958-12-05
•
Granted: 1961-06-27
•
Expires: 1978-12-05
Abstract
No abstract record available.
Inventors
- 👤 Flowers Henry Fort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:08
CPC Classifications
B; B61; B61D; B61D7/00; B61D7/08; B61D3/00; B61D3/10; B61F; B61F3/00; B61F3/12; B61F3/125; B61G; B61G5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2066836A
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US2633089A
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US2699733A
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US2856864A
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US2839010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |