Patent US3174733A successfully refreshed from Google Patents.
US3174733A
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US
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Swing diffuser
Assignee: FMC Corp
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Filing: 1961-04-14
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Granted: 1965-03-23
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Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
- 👤 Corson W Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:37
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; C02F3/203; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y02W10/30; Y02W10/37; Y10; Y10S; Y10S261/00; Y10S261/47
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
A SWING DIFFUSER COMPRISING A RIGID UPPER HANGER PIPE, A FLEXIBLE TUBE ADAPTED TO CONNECT SAID UPPER HANGER PIPE TO A SOURCE OF AIR UNDER PRESSURE, A RIGID LOWER HANGER PIPE, A SECOND FLEXIBLE TUBE CONNECTING THE UPPER END OF SAID LOWER HANGER PIPE TO THE LOWER END OF SAID UPPER HANGER PIPE, SAID HANGER PIPES AND FLEXIBLE TUBES BEING IN A COMMON VERTICAL PLANE, MEANS FOR PIVOTALLY MOUNTING SAID UPPER HANGER PIPE, MEANS FOR KEEPING SAID HANGER PIPES IN SAID COMMON VERTICAL PLANE IN ALL POSITIONS OF SAID HANGER PIPES WHILE PERMITTING RELATIVE MOVEMENT THEREBETWEEN, AND AIR DIFFUSING MEANS CONNECTED TO THE LOWER END OF SAID LOWER HANGER PIPE.
References Cited (Backward Citations)
CA614617A
Cited
US1219049A
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US1539047A
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GB346270A
Cited
US2521454A
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US2527097A
Cited
US2650810A
Cited
US2663178A
Cited
US2825541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |