US2616004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid controlled switch
Assignee: Individual
•
Filing: 1951-09-19
•
Granted: 1952-10-28
•
Expires: 1971-09-19
Abstract
No abstract record available.
Inventors
- 👤 Max T Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:04
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/241; B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/225; H; H01; H01H; H01H35/00; H01H35/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1704761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |