US3072978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air purifier
Assignee: Modern Aids Inc
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Filing: 1959-03-17
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Granted: 1963-01-15
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Expires: 1979-03-17
Abstract
No abstract record available.
Inventors
- 👤 Wallace L Minto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:42
CPC Classifications
F; F24; F24F; F24F8/00; F24F8/10; F24F8/192; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN AIR PURIFIER COMPRISING A HOUSING HAVING FORMED IN THE WALLS THEREOF AN AIR INLET AND AN AIR OUTLET, AN AIRMOVING DEVICE POSITIONED WITHIN SAID HOUSING TO DRAW AIR ALONG A PATH FROM SAID AIR INLET TO SAID AIR OUTLET, AN AIR FILTER CONNECTED TO SAID HOUSING AND POSITIONED ALONG SAID PATH, AN IONIZING SOURCE OF RADIATION MOUNTED WITHIN SAID HOUSING IN POSITION TO IRRADIATE AIR PROCEEDING ALONG SAID PATH, AND A GROUNDED PHOTOELECTRON EMITTER MOUNTED WITHIN SAID HOUSING IN CLOSE PROXIMITY TO SAID IONIZING SOURCE IN A POSITION TO INTERCEPT SOME OF THE RADIATION PROCEEDING FROM SAID IONIZING SOURCE AND HAVING A WORK FUNCTION LESS
Claim 2
Dependent Claim
106 words
AN AIR PURIFIER COMPRISING A HOUSING HAVING FORMED IN THE WALLS THEREOF AN AIR INLET AND AN AIR OUTLET, AN AIRMOVING DEVICE POSITIONED WITHIN SAID HOUSING TO DRAW AIR ALONG A PATH FROM SAID AIR INLET TO SAID AIR OUTLET, AN AIR FILTER CONNECTED TO SAID HOUSING AND POSITIONED ALONG SAID PATH, AN IONIZING SOURCE OF RADIATION MOUNTED WITHIN SAID HOUSING IN POSITION TO IRRADIATE AIR PROCEEDING ALONG SAID PATH, AND A GROUNDED PHOTOELECTRON EMITTER MOUNTED WITHIN SAID HOUSING IN CLOSE PROXIMITY TO SAID IONIZING SOURCE IN A POSITION TO INTERCEPT SOME OF THE RADIATION PROCEEDING FROM SAID IONIZING SOURCE AND HAVING A WORK FUNCTION LESS
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |