US2711226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrified centrifugal gas cleaning device
Assignee: Research Corp
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Filing: 1954-07-12
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Granted: 1955-06-21
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Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert S Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:42
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/08; B04C5/103; B03; B03C; B03C3/00; B03C3/02; B03C3/04; B03C3/14; B03C3/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A GAS CLEANING DEVICE COMPRISING A TUBULAR GAS SEPARATING MEMBER, MEANS FOR INTRODUCING AND VORTICALLY WHIRLING GAS TO BE CLEANED AT THE UPPER END OF THE SEPARATOR MEMBER, OUTLET MEANS AT THE LOWER END OF THE SEPARATOR MEMBER FOR THE GAS STREAM CONTAINING THE CONCENTRATED SUSPENDED MATERIAL, AN INNER TUBULAR GAS OUTLET MEMBER CONCENTRIC WITH SAID SEPARATOR MEMBER, THE UPPER END OF THE OUTLET MEMBER PROJECTING ABOVE THE GAS INLET END OF THE SEPARATOR MEMBER AND THE LOWER
Claim 2
Dependent Claim
78 words
A GAS CLEANING DEVICE COMPRISING A TUBULAR GAS SEPARATING MEMBER, MEANS FOR INTRODUCING AND VORTICALLY WHIRLING GAS TO BE CLEANED AT THE UPPER END OF THE SEPARATOR MEMBER, OUTLET MEANS AT THE LOWER END OF THE SEPARATOR MEMBER FOR THE GAS STREAM CONTAINING THE CONCENTRATED SUSPENDED MATERIAL, AN INNER TUBULAR GAS OUTLET MEMBER CONCENTRIC WITH SAID SEPARATOR MEMBER, THE UPPER END OF THE OUTLET MEMBER PROJECTING ABOVE THE GAS INLET END OF THE SEPARATOR MEMBER AND THE LOWER
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |