Patent JPS544743A successfully refreshed from Google Patents.
US2567652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freight car door fitting
Assignee: Individual
•
Filing: 1947-05-16
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Granted: 1951-09-11
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Expires: 1967-05-16
Abstract
No abstract record available.
Inventors
- 👤 Parker Milton
- 👤 Henry C Bowden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:45
CPC Classifications
B; B61; B61D; B61D19/00; B61D19/003; B61D19/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US123056A
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US232573A
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US910010A
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US1415746A
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US1458327A
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US1820098A
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US1908698A
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US2194230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |