US3156233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing and sound absorbing means for air handling apparatus
Assignee: General Electric Co
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Filing: 1963-09-16
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Granted: 1964-11-10
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Alva D O'connell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:26
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
A CONVERTIBLE AIR HANDLING APPARATUS HAVING A METAL HOUSING ENCLOSING A PLENUM CHAMBER THAT INCLUDES A MOTOR-BLOWER UNIT, THE HOUSING HAVING AN OPEN BOTTOM WALL THAT FORMS A BOTTOM AIR INLET OPENING, AN OPENING IN THE TOP WALL OF THE HOUSING FORMING AN AIR OUTLET OPENING, A FILTER MEDIUM ADAPTED TO BE POSITIONED WITHIN THE BOTTOM OPENING WHEN THE APPARATUS IS PROVIDED WITH A BOTTOM INLET, AT LEAST ONE SHEET OF FIBERBOARD POSITIONED ALONG A SIDE WALL OF THE PLENUM CHAMBER TO ATTENTUATE
References Cited (Backward Citations)
US2118328A
Cited
DE961758C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |