US3384976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating an atmosphere and a remote regenerator therefor
Assignee: C I HAYES Inc
•
Filing: 1965-12-21
•
Granted: 1968-05-28
•
Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Westeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:30
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F2003/1458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1189383A
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US1596060A
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US2440043A
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US2478393A
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US2884855A
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US3092477A
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US3068587A
Cited
US3224168A
Cited
US3304623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |