US3495950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic muffler construction for exhaust emissions control in an internal combustion engine system
Assignee: Texaco Inc
•
Filing: 1964-05-20
•
Granted: 1970-02-17
•
Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Everett M Barber
- 👤 John T Brandenburg
- 👤 Richard A Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2835; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/64; B01D53/92; B01D53/94; B01D53/944; F01N3/2825; F01N3/2839; F01N3/2842; F01N3/285; F01N3/30; F01N3/32; F01N3/34; F01N2260/00; F01N2260/14; F01N2330/00; F01N2330/06; F01N2330/10; F01N2330/14; F01N2510/00; F01N2510/06; F01N2570/00; F01N2570/02; F02; F02D; F02D9/00; F02D9/04; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2073951A
Cited
US3025133A
Cited
US3233697A
Cited
US3189563A
Cited
US3162516A
Cited
US3233699A
Cited
US3254966A
Cited
US3227659A
Cited
US3231520A
Cited
US3362783A
Cited
US3247666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |