Patent US2708487A successfully refreshed from Google Patents.
US2708487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas cleaning apparatus
Assignee: —
•
Filing: —
•
Granted: 1955-05-17
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Expires: 1972-05-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:46
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/01; B03C3/011; B03C3/017; B03C3/02; B03C3/025; B03C3/04; B03C3/06; B03C3/34; B03C3/36; B03C3/361; B03C3/40; B03C3/41; B03C3/45; B03C3/49; B03C3/74; B03C3/76; B03C2201/00; B03C2201/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
GAS CLEANING APPARATUS COMPRISING IN COMBINATION WITH AN ELECTRICAL PRECIPITATOR HAVING COMPLEMENTARY DISCHARGE AND COLLECTING ELECTRODES ARRANGED FOR SUBSTANTIALLY HORIZONTAL FLOW OF GASES THEREBETWEEN A PARTICULATE MATERIAL RECEIVING HOPPER POSITIONED BELOW SAID DISCHARGE AND COLLECTING ELECTRODES, MECHANICAL GAS CLEANING MEANS AND GAS FLOW CONTROL MEANS TO CAUSE FROM ABOUT THE LOWER ONE-THIRD TO ABOUT THE LOWER TWOTHIRDS OF THE GAS LEAVING THE ELECTRICAL PRECIPITATOR TO PASS THROUGH THE MECHAINCAL GAS CLEANING MEANS.
Claim 2
Dependent Claim
72 words
GAS CLEANING APPARATUS COMPRISING IN COMBINATION WITH AN ELECTRICAL PRECIPITATOR HAVING COMPLEMENTARY DISCHARGE AND COLLECTING ELECTRODES ARRANGED FOR SUBSTANTIALLY HORIZONTAL FLOW OF GASES THEREBETWEEN A PARTICULATE MATERIAL RECEIVING HOPPER POSITIONED BELOW SAID DISCHARGE AND COLLECTING ELECTRODES, MECHANICAL GAS CLEANING MEANS AND GAS FLOW CONTROL MEANS TO CAUSE FROM ABOUT THE LOWER ONE-THIRD TO ABOUT THE LOWER TWOTHIRDS OF THE GAS LEAVING THE ELECTRICAL PRECIPITATOR TO PASS THROUGH THE MECHAINCAL GAS CLEANING MEANS.
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) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |