Patent US2362977A successfully refreshed from Google Patents.
US2362977A
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Resistance type temperature controlling and indicating system
Assignee: C A DUNHAM Co
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Filing: 1938-10-24
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Granted: 1944-11-21
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Expires: 1958-10-24
Abstract
No abstract record available.
Inventors
- 👤 Jr David N Crosthwait
- 👤 Everett W Werts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/10; F24D19/1003; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1902; G05D23/1904; G05D23/20; G05D23/24
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) | 1947-11-21 | 1948-05-22 | 1948-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-21 | 1952-05-22 | 1952-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-21 | 1956-05-22 | 1956-11-21 | $7700.00 | Window Closed / Lapsed |