US2415672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic control device
Assignee: General Electric Co
•
Filing: 1943-06-25
•
Granted: 1947-02-11
•
Expires: 1963-06-25
Abstract
No abstract record available.
Inventors
- 👤 James R Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:25
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/185; B; B64; B64D; B64D15/00; B64D15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1015552A
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US1138854A
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US1782073A
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US1724209A
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US2114567A
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US2213582A
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US2225209A
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US2352786A
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US2316940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-10 | 1950-08-12 | 1951-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-10 | 1954-08-12 | 1955-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-10 | 1958-08-12 | 1959-02-11 | $7700.00 | Window Closed / Lapsed |