US3598540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic exhaust gas purifying device and casing means therefor
Assignee: Individual
•
Filing: 1969-04-02
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Granted: 1971-08-10
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Expires: 1989-04-02
Abstract
Abstract DEVICE CAN BE MOUNTED ON A VEHICLE UNDER RESTRICTED SPACE CONDITIONS. A CATALYTIC EXHAUST GAS PURIFYING DEVICE UTILIZING A BED OF CATALYTIC MATERIAL AND INCLUDING A CASING MEANS AND VENTURI MEANS CONSTRUCTED AND ARRANGED TO PROVIDE DECREASED WARMUP TIME FOR COMMENCING OPERATION OF THE DEVICE AND TO UTILIZE A MODE OF CONSTRUCTION OF THE CASING MEANS AND VENTURI MEANS WHICH ENHANCES NOT ONLY OPERATING EFFICIENCY BUT ALSO THE FACILITY BY WHICH THE
Inventors
- 👤 Sidney Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:17
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/30; F01N3/34; F01N3/28; F01N3/2839; F01N3/2846; F01N2260/00; F01N2260/08; F01N2260/10; F01N2330/00; F01N2330/08; F01N2450/00; F01N2450/04; F01N2470/00; F01N2530/00; F01N2530/02; F01N2530/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |