Patent US2825826A successfully refreshed from Google Patents.
US2825826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slow speed electric motor
Assignee: SUNDT ENGINEERING Co
•
Filing: 1953-11-06
•
Granted: 1958-03-04
•
Expires: 1973-11-06
Abstract
No abstract record available.
Inventors
- 👤 Edward V Sundt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06; H02K7/065
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1131896A
Cited
US1739885A
Cited
US1733872A
Cited
US2183062A
Cited
US2487469A
Cited
US2499632A
Cited
US2601174A
Cited
US2568757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |