US3567403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust gas catalytic converter
Assignee: Universal Oil Products Co
•
Filing: 1969-01-29
•
Granted: 1971-03-02
•
Expires: 1989-01-29
Abstract
Abstract IN A CATALYTIC CONVERTER UNIT HAVING A FIXED BED OF CATALYST PARTICLES, THE IMPROVED CONSTRUCTION WHICH USES A PAIR OF OPPOSING PERFORATED MEMBERS TO SUPPORT THE CATALYST THEREBETWEEN AND EACH OF THE PERFORATED MEMBERS IS OF A DISHED DESIGN THAT IS POSITIONED TO BE CONVEX INWARDLY TOWARD THE CATALYST SUCH THAT PARTICLES WILL BE HELD IN A TIGHT NON-SETTLING MANNER WHEN THE THE UNIT IS SUBJECTED TO EXPANSION FROM HIGH TEMPERATURE OPERATING CONDITIONS.
Inventors
- 👤 Martin W Perga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2892; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F01N3/2839; F01N3/2846; F01N2260/00; F01N2260/10; F01N2260/16; F01N2330/00; F01N2330/08; F01N2490/00; F01N2490/16; F01N2510/00; F01N2510/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |