US3084609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system
Assignee: Research Products Corp
•
Filing: 1960-07-25
•
Granted: 1963-04-09
•
Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Ragnar E Onstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:48
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F8/00; F24F8/10; F24F8/108; Y; Y10; Y10S; Y10S55/00; Y10S55/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A FILTER-DIFFUSER FOR USE WITH A PLANAR AIR INLET OPENING IN A WALL OR CEILING OF A ROOM, COMPRISING: (A) A RIGID MULTI-PLY MEMBER OF INDIVIDUAL LAYERS OF SLIT AND EXPANDED METAL HAVING INTERCONNECTING FILTER PORES FOR THE PASSAGE OF AIR THERETHROUGH INTO THE ROOM, (B) SAID MEMBER BEING NON-PLANAR FOR EXTENDING FROM THE PLANE OF THE OPENING INTO THE ROOM AND HAVING A PERIPHERAL EDGE OF A DIMENSION GREATER THAN THAT OF THE SAID OPENING WITH WHICH THE DIFFUSER IS TO BE USED, (C) SEALING MEANS DISPOSED ALONG THE SAID PERIPHERAL EDGE AND POSITIONED FOR SEALING THE SAID MEMBER TO THE PERIPHERY OF THE SAID OPENING TO THEREBY COMPEL SUBSTANTIALLY ALL AIR PASSING OUTWARDLY THROUGH SAID OPENING TO PASS THROUGH THE MEMBER, (D) AND MEANS DISPOSED SUBSTANTIALLY CENTRALLY OF SAID MEMBER FOR REMOVABLY MOUNTING SAID MEMBER IN PLACE.
Claim 2
Dependent Claim
139 words
A FILTER-DIFFUSER FOR USE WITH A PLANAR AIR INLET OPENING IN A WALL OR CEILING OF A ROOM, COMPRISING: (A) A RIGID MULTI-PLY MEMBER OF INDIVIDUAL LAYERS OF SLIT AND EXPANDED METAL HAVING INTERCONNECTING FILTER PORES FOR THE PASSAGE OF AIR THERETHROUGH INTO THE ROOM, (B) SAID MEMBER BEING NON-PLANAR FOR EXTENDING FROM THE PLANE OF THE OPENING INTO THE ROOM AND HAVING A PERIPHERAL EDGE OF A DIMENSION GREATER THAN THAT OF THE SAID OPENING WITH WHICH THE DIFFUSER IS TO BE USED, (C) SEALING MEANS DISPOSED ALONG THE SAID PERIPHERAL EDGE AND POSITIONED FOR SEALING THE SAID MEMBER TO THE PERIPHERY OF THE SAID OPENING TO THEREBY COMPEL SUBSTANTIALLY ALL AIR PASSING OUTWARDLY THROUGH SAID OPENING TO PASS THROUGH THE MEMBER, (D) AND MEANS DISPOSED SUBSTANTIALLY CENTRALLY OF SAID MEMBER FOR REMOVABLY MOUNTING SAID MEMBER IN PLACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |