US2641671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch
Assignee: Cutler Hammer Inc
•
Filing: 1949-12-27
•
Granted: 1953-06-09
•
Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 Martin F Koenig
- 👤 Ralph A Millermaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:55
CPC Classifications
H; H01; H01H; H01H15/00; H01H15/02; H01H3/00; H01H3/02; H01H3/20; H01H9/00; H01H9/30; H01H9/32; H01H9/02; H01H9/0264; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |