Patent US2643464A successfully refreshed from Google Patents.
US2643464A
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Automatic drying control system
Assignee: AMERICAN INSTR CO Inc
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Filing: 1949-03-07
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Granted: 1953-06-30
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Expires: 1969-03-07
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hadady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:04
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/30; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516; Y10T137/2496; Y10T137/2499
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1167740A
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US1467306A
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US1539230A
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US1707547A
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US2080059A
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US2037695A
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US2333000A
Cited
US2347601A
Cited
US2548939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |