US2326239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrothermally operated circuit controller
Assignee: Bristol Co
•
Filing: 1940-11-05
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Granted: 1943-08-10
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Expires: 1960-11-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick B Maclaren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/64; H01H37/68; H01H37/32; H01H37/46; H01H37/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-08-09 | 1947-02-08 | 1947-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-09 | 1951-02-08 | 1951-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-09 | 1955-02-08 | 1955-08-10 | $7700.00 | Window Closed / Lapsed |