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US3197944A
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US
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Rotary adsorber having intermittent movement
Assignee: C I HAYES Inc
•
Filing: 1961-08-07
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Granted: 1965-08-03
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Westeren
- 👤 Carl G Paulson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:35
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D2253/00; B01D2253/10; B01D2253/116; B01D2256/00; B01D2256/10; B01D2257/00; B01D2257/50; B01D2257/504; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40083; B01D2259/40088; B01D53/26; B01D53/261; Y; Y02; Y02C; Y02C20/00; Y02C20/40
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |