US2981207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway trucks and similar carriages
Assignee: Luxembourgeoise de Brevets et de Participations SA
•
Filing: 1958-06-18
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Granted: 1961-04-25
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Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 Paulsen Jean Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:42
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/50; B61F5/52; B61F5/26; B61F5/30; B61F5/32; B61F5/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2194792A
Cited
US2271195A
Cited
US2630079A
Cited
US2638058A
Cited
US2720847A
Cited
US2730048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |