Patent US2955241A successfully refreshed from Google Patents.
US2955241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latching attachment for electromagnetic contactors
Assignee: Arrow Hart and Hegeman Electric Co
•
Filing: 1957-03-11
•
Granted: 1960-10-04
•
Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 Harold E Schleicher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:37
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/32; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H51/10; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1070904A
Cited
US1208863A
Cited
US1331882A
Cited
US1568817A
Cited
US2399517A
Cited
US2478691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |