US2485577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratiometer
Assignee: STC PLC
•
Filing: 1945-04-17
•
Granted: 1949-10-25
•
Expires: 1965-04-17
Abstract
No abstract record available.
Inventors
- 👤 Dubin Lester
- 👤 Patakl Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:49
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)
US2354555A
Cited
US1161819A
Cited
US1713850A
Cited
US1677378A
Cited
US1948912A
Cited
US2098029A
Cited
US2156055A
Cited
US2358910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |