Patent US2459612A successfully refreshed from Google Patents.
US2459612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed gas circuit interrupter
Assignee: Westinghouse Electric Corp
•
Filing: 1944-12-22
•
Granted: 1949-01-18
•
Expires: 1964-12-22
Abstract
No abstract record available.
Inventors
- 👤 Benjamin P Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:05
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/80; H01H33/82; H01H33/83; Y; Y10; Y10S; Y10S174/00; Y10S174/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1531522A
Cited
US1703409A
Cited
US1928470A
Cited
US1965551A
Cited
US2071965A
Cited
US2153400A
Cited
US2279536A
Cited
US2336316A
Cited
US2306186A
Cited
US2367934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |