US2451566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic panel circuit for air reheat control
Assignee: Vapor Heating Corp
•
Filing: 1945-04-16
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Granted: 1948-10-19
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Expires: 1965-04-16
Abstract
No abstract record available.
Inventors
- 👤 Timothy J Lehane
- 👤 Everett H Burgess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:53
CPC Classifications
B; B61; B61D; B61D27/00; B61D27/0018; F; F24; F24D; F24D5/00; G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/27539
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US843909A
Cited
US2181480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |