US3713785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fume exhaust and treating system
Assignee: Hycel Inc
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Filing: 1971-01-20
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Granted: 1973-01-30
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Expires: 1991-01-20
Abstract
Abstract A FUME EXHAUST AND TREATING SYSTEM HAVING A HOOD FOR RECEIVING FUMES TO BE TREATED AND INCLUDING A CIRCULATING WATER SYSTEM WITH A VENTURI THEREIN AND CONNECTED TO THE HOOD FOR CREATING A VACUUM FOR DRAWING FUMES FROM THE HOOD AND A CONTAINER IN THE CIRCULATING WATER SYSTEM WITH MEANS FOR INJECTING WATER AND A TREATING AGENT INTO THE CONTAINER FOR TREATING THE FUMES AND AN OVERFLOW DRAIN CONNECTED TO THE WATER SYSTEM. A FUME TREATING SYSTEM IN COMBINATION WITH A CHEMICAL TESTING APPARATUS WHICH AUTOMATICALLY PERFORMS CHEMICAL TESTS FOR REMOVING THE NOXIOUS FUMES FROM THE APPARATUS.
Inventors
- 👤 J Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:08
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/02; G01N35/021; B; B08; B08B; B08B15/00; B08B15/02; B08B15/023
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |