US2347601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic control for dry kilns
Assignee: BF Sturtevant Co
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Filing: 1943-05-21
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Granted: 1944-04-25
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Expires: 1963-05-21
Abstract
No abstract record available.
Inventors
- 👤 Jackson William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:15
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/30; F26B21/20; F26B21/202; F26B21/208; F26B2210/00; F26B2210/16
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) | 1947-04-25 | 1947-10-25 | 1948-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-25 | 1951-10-25 | 1952-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-25 | 1955-10-25 | 1956-04-25 | $7700.00 | Window Closed / Lapsed |