Patent US2620230A successfully refreshed from Google Patents.
US3085647A
Expired / Lapsed
US
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Acoustic curb
Assignee: JENN AIR PRODUCTS CO Inc
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Filing: 1960-11-07
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Granted: 1963-04-16
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Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Louis J Jenn
- 👤 William E Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:51
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/02; F16L55/027; F16L55/02736
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A SOUND-ATTENUATING STRUCTURE FOR SUPPORTING A POWER DRIVEN AIR MOVING DEVICE, SAID STRUCTURE INCLUDING A BODY PORTION PROVIDING AXIALLY ALIGNED INLET AND OUTLET APERTURES, A PRIMARY SOUND-ATTENUATING BAFFLE MOUNTED WITHIN SAID BODY PORTION TO OVERLIE SAID INLET APERTURE AND HAVING ITS MARGINS SPACED FROM SAID BODY PORTION, AT LEAST ONE APERTURE IN SAID PRIMARY BAFFLE AND AN AUXILIARY BAFFLE DISPOSED WITHIN SAID BODY PORTION BETWEEN SAID PRIMARY BAFFLE AND SAID INLET APERTURE AND EXTENDING OUTWARDLY
References Cited (Backward Citations)
US1289856A
Cited
US2644389A
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US2576860A
Cited
US2750865A
Cited
GB780718A
Cited
US2875678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |