US2487328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine
Assignee: Leland Electric Co
•
Filing: 1943-12-27
•
Granted: 1949-11-08
•
Expires: 1963-12-27
Abstract
No abstract record available.
Inventors
- 👤 Earl B George
- 👤 Bernard E Wallace
- 👤 Robert S Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:11
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1815
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US824187A
Cited
US1064736A
Cited
US1442217A
Cited
US1563945A
Cited
US1488985A
Cited
US1734497A
Cited
US2107481A
Cited
US1843589A
Cited
US1930312A
Cited
US1863202A
Cited
US1935211A
Cited
US2164837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |