US3685972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic converter construction
Assignee: ALBERT J BRONS
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Filing: 1969-09-18
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Granted: 1972-08-22
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Expires: 1989-09-18
Abstract
Abstract A CATALYTIC CONVERTER FOR TREATING EXHAUST GAS STREAMS ADAPTED FOR ENGINE COMPARTMENT INSTALLATION AND ENCOMPASSING A DESIGN THAT WILL WITHSTAND STESSES DUE TO TEMPERATURE DIFFERENTIALS WITHIN THE CONVERTER BY UTILIZING A SYMMETRICAL DESIGN WITH SLIDEABLE PARTS. IN A PREFERRED ARRANGEMENT THE CONVERTER HAS A CATALYST RESERVOIR THEREIN WHICH SERVES AS STORAGE FOR FRESH CATALYST PARTICLES THAT FLOW INTO THE CATALYST RETAINING SECTION, REPLACING PARTICLES LOST BY ATTRITION.
Inventors
- 👤 Ted V De Palma
- 👤 Albert J Brons
- 👤 Martin W Perga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:48
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2846; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F01N13/00; F01N13/18; F01N2330/00; F01N2330/08; F01N2450/00; F01N2450/22
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |