US2714874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch operating mechanism
Assignee: Hi Voltage Equipment Co
•
Filing: 1951-04-18
•
Granted: 1955-08-09
•
Expires: 1971-04-18
Abstract
No abstract record available.
Inventors
- 👤 Lester C Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:56
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1051054A
Cited
US1281543A
Cited
US1944846A
Cited
US2235074A
Cited
US2308261A
Cited
US2255496A
Cited
US2566811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |