Patent US3343475A successfully refreshed from Google Patents.
US3343475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building wall with insulating and air-filtering ventilator
Assignee: Individual
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Filing: 1965-10-20
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Granted: 1967-09-26
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 James H Costley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:19
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN COMBINATION WITH A BUILDING HAVING AN OUTSIDE WALL, AN INSULATED VENTILATING DEVICE COMPRISING A BLOCK OF LIGHTWEIGHT, RIGID FOAM PLASTIC, HEAT INSULATING MATERIAL DISPOSED THROUGH THE OUTSIDE WALL OF SAID BUILDING AND HAVING AN INNER FACE, AN OUTER FACE AND A SLOT EXTENDING COMPLETELY THROUGH SAID WALL FROM THE OUTER FACE OF SAID BLOCK TO ITS SAID INNER FACE TO FORM A PASSAGE FOR THE FLOW OF AIR FROM SAID OUTER FACE TO SAID INNER FACE, SAID SLOT BEING ELONGATED IN THE DIRECTION OF AIR FLOW FROM SAID OUTER FACE TO SAID INNER FACE, A CARTRIDGE FILTER CONTAINING FILTER MATERIAL FILLING SAID SLOT, AND MEANS ADJACENT SAID INNER FACE FOR SELECTIVELY BLOCKING AND OPENING SAID SLOT INNER BY, UPON THE OPENING OF SAID MEANS, FILTERED AIR MAY ENTER SAID BUILDING FROM THE EXTERIOR TO THE INTERIOR THEREOF THROUGH SAID SLOT.
Claim 2
Dependent Claim
141 words
IN COMBINATION WITH A BUILDING HAVING AN OUTSIDE WALL, AN INSULATED VENTILATING DEVICE COMPRISING A BLOCK OF LIGHTWEIGHT, RIGID FOAM PLASTIC, HEAT INSULATING MATERIAL DISPOSED THROUGH THE OUTSIDE WALL OF SAID BUILDING AND HAVING AN INNER FACE, AN OUTER FACE AND A SLOT EXTENDING COMPLETELY THROUGH SAID WALL FROM THE OUTER FACE OF SAID BLOCK TO ITS SAID INNER FACE TO FORM A PASSAGE FOR THE FLOW OF AIR FROM SAID OUTER FACE TO SAID INNER FACE, SAID SLOT BEING ELONGATED IN THE DIRECTION OF AIR FLOW FROM SAID OUTER FACE TO SAID INNER FACE, A CARTRIDGE FILTER CONTAINING FILTER MATERIAL FILLING SAID SLOT, AND MEANS ADJACENT SAID INNER FACE FOR SELECTIVELY BLOCKING AND OPENING SAID SLOT INNER BY, UPON THE OPENING OF SAID MEANS, FILTERED AIR MAY ENTER SAID BUILDING FROM THE EXTERIOR TO THE INTERIOR THEREOF THROUGH SAID SLOT.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |