US3570219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge electrode assembly
Assignee: Research Cottrell Inc
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Filing: 1968-01-08
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Granted: 1971-03-16
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Expires: 1988-01-08
Abstract
Abstract DISCHARGE ELECTRODE ASSEMBLIES ELECTRICAL PRECIPITATORS HAVING EXTENDED SURFACE COLLECTING ELECTRODES COMPRISE ELONGATE METALLIC RIBBONS DISPOSED WITH THE EDGES OF THE RIBBONS HAVING SUBSTANTIALLY PARALLEL PATHS IN PLANES PARALLEL TO AND SPACED FROM THE ASSOCIATED COLLECTING ELECTRODE FACES AND SUPPORT MEMBERS MAINTAINING THE RIBBONS RIGIDLY IN SUCH POSITION. IN PREFERRED ARRANGEMENTS THE METALLIC RIBBONS ARE BENT INTO AT LEAST PARTIALLY CURVILINEAR SHAPE.
Inventors
- 👤 Frederick W Schmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:38
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/40; B03C3/41; B03C2201/00; B03C2201/10
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |