US2453726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction motor starting relay
Assignee: Essex Wire Corp
•
Filing: 1945-04-04
•
Granted: 1948-11-16
•
Expires: 1965-04-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Prouty
- 👤 Ralph E Bish
- 👤 Richard L Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:13
CPC Classifications
H; H02; H02P; H02P1/00; H02P1/16; H02P1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1030050A
Cited
US1600775A
Cited
US1991035A
Cited
US1922806A
Cited
US2117123A
Cited
US2276057A
Cited
US2296123A
Cited
US2314239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |