Patent US2423107A successfully refreshed from Google Patents.
US2423107A
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Thermistor controlled relay circuits
Assignee: STC PLC
•
Filing: 1943-05-15
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Granted: 1947-07-01
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Expires: 1963-05-15
Abstract
No abstract record available.
Inventors
- 👤 Mcwhirter Eric Malcolm Swift
- 👤 Wolfson Henry
- 👤 Dunn Roland Harris
- 👤 Shepard Stanley Carden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/02; H02J13/00; H02J13/13; H02J13/1311; H02J13/1313; Y; Y02; Y02E; Y02E60/00; Y04; Y04S; Y04S40/00; Y04S40/12; Y04S40/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123063A
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US936207A
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US2001498A
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US2160823A
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US2287164A
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US2140930A
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US2332073A
Cited
US2341013A
Cited
US2339029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |