Patent US3122307A successfully refreshed from Google Patents.
US3122307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan equipment
Assignee: CLARAGE FAN CO
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Filing: 1961-08-08
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Granted: 1964-02-25
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Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Robert A Wasson
- 👤 Sewell H Downs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; F24F7/025; F04; F04D; F04D25/00; F04D25/16; F04D25/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A GAS MOVING APPARATUS, COMPRISING: AN OUTER CASING OF SHEET MATERIAL AND CIRCULAR CROSS SECTION; AN INNER, CYLINDRICAL WALL MEMBER OF SHEET MATERIAL AND COAXIALLY DISPOSED WITHIN AND RADIALLY SPACED FROM SAID CASING; MEANS RIGIDLY SECURING SAID WALL MEMBER WITH RESPECT TO SAID CASING; A SHAFT, AND BEARING MEANS MOUNTED UPON SAID WALL MEMBER AND ROTATABLY SUPPORTING SAID SHAFT COAXIALLY WITHIN SAID WALL MEMBER, SAID SHAFT EXTENDING AXIALLY BEYOND ONE END OF SAID WALL MEMBER; A CENTRIFUGAL IMPELLER CONCENTRICALLY SUPPORTED UPON SAID SHAFT EXTERNALLY OF AND AXIALLY SPACED FROM SAID WALL MEMBER AND HAVING AN INLET SIDE OPPOSING AND AXIALLY SPACED FROM SAID ONE END OF SAID WALL MEMBER;
Claim 2
Dependent Claim
109 words
A GAS MOVING APPARATUS, COMPRISING: AN OUTER CASING OF SHEET MATERIAL AND CIRCULAR CROSS SECTION; AN INNER, CYLINDRICAL WALL MEMBER OF SHEET MATERIAL AND COAXIALLY DISPOSED WITHIN AND RADIALLY SPACED FROM SAID CASING; MEANS RIGIDLY SECURING SAID WALL MEMBER WITH RESPECT TO SAID CASING; A SHAFT, AND BEARING MEANS MOUNTED UPON SAID WALL MEMBER AND ROTATABLY SUPPORTING SAID SHAFT COAXIALLY WITHIN SAID WALL MEMBER, SAID SHAFT EXTENDING AXIALLY BEYOND ONE END OF SAID WALL MEMBER; A CENTRIFUGAL IMPELLER CONCENTRICALLY SUPPORTED UPON SAID SHAFT EXTERNALLY OF AND AXIALLY SPACED FROM SAID WALL MEMBER AND HAVING AN INLET SIDE OPPOSING AND AXIALLY SPACED FROM SAID ONE END OF SAID WALL MEMBER;
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |