US3740197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic converter
Assignee: Meritor Inc
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Filing: 1971-05-10
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Granted: 1973-06-19
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Expires: 1991-05-10
Abstract
Abstract A CATALYTIC CONVERTER FOR REMOVING NOXIOUS POLLUTANTS FROM AN EXHAUST GAS STREAM HAVING A CONVERSION CHAMBER MOUNTED THEREIN. GAS INLETS AND OUTLETS ARE PROVIDED IN OPEN COMMUNICATION WITH SAID CHAMBER AND WITH A BYPASS PASSAGE AROUND SAID CHAMBER. A VALVE IS CONNECTED TO SAID INLET OR OUTLETS FOR SELECTIVELY CONTROLLING THE GAS FLOW THROUGH TTHE CONVERTER SO THAT THE EXHAUST GASES PASSING THROUGH THE CONVERTER MAY OR MAY NOT BE SUBJECTED TO THE ACTION OF THE CONVERSION CHAMBER DEPENDING UPON THE POSITIONING OF SAID VALVE.
Inventors
- 👤 G Scheitlin
- 👤 R Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:21
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/30; F01N3/34; F01N3/18; F01N3/20; F01N3/2053; F01N3/28; F01N3/2839; F01N3/2846; F01N2330/00; F01N2330/08; F01N2450/00; F01N2450/04; F01N2470/00; F01N2470/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |