US3050935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for catalytically treating internal combustion engine exhaust gases
Assignee: ExxonMobil Oil Corp
•
Filing: 1961-01-05
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Granted: 1962-08-28
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Expires: 1981-01-05
Abstract
No abstract record available.
Inventors
- 👤 Sylvander C Eastwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:21
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/2006; F01N3/2046; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F01N3/02; F01N3/05; F01N5/00; F01N5/02; F01N13/00; F01N13/14; F01N2240/00; F01N2240/02; F01N2260/00; F01N2260/02; F01N2260/022; F01N2260/024; F01N2270/00; F01N2270/02; F01N2310/00; F01N2310/02; F01N2410/00; 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)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |