US2531492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rate of change indicator
Assignee: Schneider Electric USA Inc
•
Filing: 1946-11-27
•
Granted: 1950-11-28
•
Expires: 1966-11-27
Abstract
No abstract record available.
Inventors
- 👤 Angst Walter
- 👤 Jr John H Andresen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:09
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/62
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1160679A
Cited
US1664265A
Cited
US2078982A
Cited
US2266449A
Cited
US2305789A
Cited
US2340403A
Cited
US2355567A
Cited
US2437064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |