Patent US3591328A successfully refreshed from Google Patents.
US3591328A
Expired / Lapsed
US
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Method of and means for controlling mold spores in air-handling systems
Assignee: BELA J SZAPPANYOS
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Filing: 1969-08-22
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Granted: 1971-07-06
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Expires: 1989-08-22
Abstract
Abstract A METHOD OF TREATING THE AIR CONTRACTED AND ADJACENT SURFACE OF AIR PROPELLING DEVICES OF AIR CONDITIONING AND AIR TREATING EQUIPMENT BY APPLYING THERETO AN ADMIXTURE OF A FUNGICIDE AND AN AIR DRIABLE SOLVENT AND HAVING FILMREINFORCING INGERDIENTS THEREIN TO COAT THE SURFACE AND TO DRY THEREON TO FORM A FUNGUS GROWTH INHIBITING COATING THEREON. THE ADMIXTURE IS INTRODUCED INTO THE AIR INLET OF AIR CONDITIONING OR TREATING EQUIPMENT WHILE THE AIR PROPELLING MECHANISM IS FUNCTIONING.
Inventors
- 👤 Bela J Szappanyos
- 👤 Robert M Eckerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:33
CPC Classifications
B; B08; B08B; B08B17/00; A; A01; A01N; A01N25/00; A01N25/24; F; F24; F24F; F24F8/00; F24F8/20; F24F8/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |