Patent US2842809A successfully refreshed from Google Patents.
US2842809A
Expired / Lapsed
US
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Laterally movable door arrangement
Assignee: Pullman-Standard Car Manufacturing Co
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Filing: 1952-12-23
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Granted: 1958-07-15
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Expires: 1972-12-23
Abstract
No abstract record available.
Inventors
- 👤 William R Shaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:26
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/10; E05D15/1005; E05D15/1007; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1066908A
Cited
US1156884A
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US1400699A
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US1697108A
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US2062757A
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US2075558A
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US2143226A
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US2614294A
Cited
US2596913A
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US2629901A
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US2563178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |