Patent US2636094A successfully refreshed from Google Patents.
US2636094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronous contactor
Assignee: Bristol Co
•
Filing: 1949-07-09
•
Granted: 1953-04-21
•
Expires: 1969-07-09
Abstract
No abstract record available.
Inventors
- 👤 John L Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:52
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/64; H01H50/74; H01H50/76
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US691667A
Cited
US1102507A
Cited
US1149054A
Cited
US1466260A
Cited
US1541618A
Cited
US1716777A
Cited
US1691203A
Cited
DE502769C
Cited
US2203727A
Cited
FR887951A
Cited
US2423524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |