Patent US2622142A successfully refreshed from Google Patents.
US2622142A
Expired / Lapsed
US
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Automatic reservation system of the code type
Assignee: Westinghouse Air Brake Co
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Filing: 1950-07-22
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Granted: 1952-12-16
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Expires: 1970-07-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur P Jackel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:33
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1787620A
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US1786524A
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US2202392A
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US2088942A
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GB441642A
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US2411375A
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US2446037A
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US2594960A
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US2594865A
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US2542890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |