Patent US2802935A successfully refreshed from Google Patents.
US2802935A
Expired / Lapsed
US
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Circuit checker for vehicle electropneumatic brake systems
Assignee: Motors Liquidation Co
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Filing: 1951-09-01
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Granted: 1957-08-13
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Expires: 1971-09-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Kenneth D Swander
- 👤 Frank J Vegh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:11
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2073443A
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US2500939A
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US2501590A
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US2464978A
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US2590483A
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US2622542A
Cited
US2581527A
Cited
US2605334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |