US2586449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level indicator
Assignee: ZF Active Safety US Inc
•
Filing: 1949-06-06
•
Granted: 1952-02-19
•
Expires: 1969-06-06
Abstract
No abstract record available.
Inventors
- 👤 Owen M Whitten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:27
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/64; G01F23/68; G01F23/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US428688A
Cited
US912970A
Cited
US980214A
Cited
US1246757A
Cited
US1291858A
Cited
US1802124A
Cited
US2253260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |