US2494802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low level switch for hydraulic brakes
Assignee: Individual
•
Filing: 1947-05-03
•
Granted: 1950-01-17
•
Expires: 1967-05-03
Abstract
No abstract record available.
Inventors
- 👤 James E Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:20
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/56; G01F23/60; B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1319146A
Cited
US1374635A
Cited
US1114636A
Cited
AT84123B
Cited
US1776287A
Cited
US1759503A
Cited
US2253260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |