US2840010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hatch frame arrangement
Assignee: Pullman-Standard Car Manufacturing Co
•
Filing: 1955-11-16
•
Granted: 1958-06-24
•
Expires: 1975-11-16
Abstract
No abstract record available.
Inventors
- 👤 Thor R Roen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:39
CPC Classifications
B; B62; B62D; B62D25/00; B62D25/06; B60; B60P; B60P7/00; B60P7/02; B60P7/04; B62D33/00; B62D33/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2256334A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |