Patent US2979828A successfully refreshed from Google Patents.
US2979828A
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Atmosphere drying chamber
Assignee: C I HAYES Inc
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Filing: 1957-05-03
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Granted: 1961-04-18
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Expires: 1977-05-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Westeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:36
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; B; B01; B01D; B01D53/00; B01D53/26; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331; F24F2003/1458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2083732A
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US2163599A
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US2257478A
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US2160831A
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US2699837A
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US2783547A
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US2815089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |