Patent US2467720A successfully refreshed from Google Patents.
US2467720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: Westinghouse Electric Corp
•
Filing: 1944-09-28
•
Granted: 1949-04-19
•
Expires: 1964-09-28
Abstract
No abstract record available.
Inventors
- 👤 Bascum O Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:02
CPC Classifications
H; H01; H01H; H01H83/00; H01H83/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US613406A
Cited
USRE18630E
Cited
GB190000695A
Cited
US1186770A
Cited
US1080058A
Cited
US1248084A
Cited
US1480970A
Cited
US1975172A
Cited
US2020952A
Cited
DE672681C
Cited
US2342791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |