US3429083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof structure for railway cars
Assignee: ACF Industries Inc
•
Filing: 1967-03-27
•
Granted: 1969-02-25
•
Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Donald F Voros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:38
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1450243A
Cited
US1461721A
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US1655699A
Cited
US1956302A
Cited
US2525059A
Cited
US2812730A
Cited
US3303620A
Cited
US3263379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |