US2419612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic vane type ratiometer
Assignee: Individual
•
Filing: 1945-05-16
•
Granted: 1947-04-29
•
Expires: 1965-05-16
Abstract
No abstract record available.
Inventors
- 👤 Howard D Warshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:21
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02; G01R27/08; G01R27/10; G01R27/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1964228A
Cited
US2342947A
Cited
US2354902A
Cited
US2362562A
Cited
US2354618A
Cited
US2345011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |