US2528744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic appliance
Assignee: Landis and Gyr AG
•
Filing: 1945-11-27
•
Granted: 1950-11-07
•
Expires: 1965-11-27
Abstract
No abstract record available.
Inventors
- 👤 Fehr Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:41
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/102; G06M1/104
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1412933A
Cited
US1561263A
Cited
US1549456A
Cited
US1505198A
Cited
US1693135A
Cited
US2200233A
Cited
US2367329A
Cited
US2366984A
Cited
US2405121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |