Patent US946844A successfully refreshed from Google Patents.
Patent US2088933A successfully refreshed from Google Patents.
Patent US2824934A successfully refreshed from Google Patents.
US2824934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visible-blade arc-extinguishing disconnecting switch
Assignee: Westinghouse Electric Corp
•
Filing: 1954-12-09
•
Granted: 1958-02-25
•
Expires: 1974-12-09
Abstract
No abstract record available.
Inventors
- 👤 Charles L Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:17
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/02; H01H73/00; H01H73/02; H01H73/18; H01H1/00; H01H1/58; H01H1/5822; H01H9/00; H01H9/0072
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1944661A
Cited
US2047739A
Cited
US2073965A
Cited
US2140360A
Cited
US2204409A
Cited
US2294838A
Cited
US2419125A
Cited
US2363295A
Cited
US2467653A
Cited
US2627563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |