US2420282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure operated switch
Assignee: Schneider Electric Systems USA Inc
•
Filing: 1944-04-21
•
Granted: 1947-05-06
•
Expires: 1964-04-21
Abstract
No abstract record available.
Inventors
- 👤 Hoel L Bowditch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:35
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US75313A
Cited
US2012153A
Cited
US2109953A
Cited
US2226287A
Cited
US2203512A
Cited
US2251129A
Cited
US2333263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-05 | 1950-11-04 | 1951-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-05 | 1954-11-04 | 1955-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-05 | 1958-11-04 | 1959-05-06 | $7700.00 | Window Closed / Lapsed |