Patent US2593857A successfully refreshed from Google Patents.
US2593857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine with stator core secured in yoke by welded studs
Assignee: Allis Chalmers Corp
•
Filing: 1949-06-28
•
Granted: 1952-04-22
•
Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Windt Joseph J De
- 👤 Edgar C George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:30
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/18; H02K1/185; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1194232A
Cited
GB228190A
Cited
US1995001A
Cited
US2096495A
Cited
US2260969A
Cited
US2478316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |