Patent US1895925A successfully refreshed from Google Patents.
US1895925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control system
Assignee: General Electric Co
•
Filing: 1930-05-28
•
Granted: 1933-01-31
•
Expires: 1950-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John Hays Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:37
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/46; H02P5/48; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/933; Y10S70/00; Y10S70/51
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-01-31 | 1936-08-01 | 1937-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-31 | 1940-08-01 | 1941-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-31 | 1944-08-01 | 1945-01-31 | $7700.00 | Window Closed / Lapsed |