US3492098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple section catalyst unit
Assignee: Universal Oil Products Co
•
Filing: 1965-12-01
•
Granted: 1970-01-27
•
Expires: 1985-12-01
Abstract
No abstract record available.
Inventors
- 👤 Ted V De Palma
- 👤 Wayne J Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F01N3/2803; F01N3/2807; B01J; B01J35/00; B01J35/30; F01N2330/00; F01N2330/12; F01N2510/00; F01N2510/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2004865A
Cited
GB411377A
Cited
GB413967A
Cited
US2526657A
Cited
US2644800A
Cited
US2873071A
Cited
US2981057A
Cited
US3088271A
Cited
US3043096A
Cited
US3227659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |