US2849627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic operation of high voltage electrical apparatus
Assignee: McGraw Edison Co
•
Filing: 1956-05-07
•
Granted: 1958-08-26
•
Expires: 1976-05-07
Abstract
No abstract record available.
Inventors
- 👤 Rigert Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:37
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34
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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |