US2403938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air brake signal system
Assignee: Motors Liquidation Co
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Filing: 1943-04-17
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Granted: 1946-07-16
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Expires: 1963-04-17
Abstract
No abstract record available.
Inventors
- 👤 Albert L Macan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:28
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/228; G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-07-15 | 1950-01-14 | 1950-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-07-15 | 1954-01-14 | 1954-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-07-15 | 1958-01-14 | 1958-07-16 | $7700.00 | Window Closed / Lapsed |