US2743574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way fast acting bimetal control element
Assignee: D H MCCORKLE Co
•
Filing: 1953-04-13
•
Granted: 1956-05-01
•
Expires: 1973-04-13
Abstract
No abstract record available.
Inventors
- 👤 Donald H Mccorkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/48; G01K5/56; G01K5/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1731420A
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US2129937A
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US2179811A
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US2128869A
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US2216809A
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US2368289A
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US2687005A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |