US3397034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating exhaust gases
Assignee: Union Oil Company of California
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Filing: 1966-01-19
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Granted: 1968-08-13
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Expires: 1986-01-19
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Tulleners
- 👤 Robert H Hass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; F; F01; F01N; F01N13/00; F01N13/009; F01N13/0097; F01N3/00; F01N3/02; F01N3/037; F01N3/05; F01N3/08; F01N3/10; F01N3/18; F01N3/22; F01N3/24; F01N3/28; F01N3/2803; F01N3/2832; F01N3/2839; F01N3/2846; F01N2570/00; F01N2570/02; 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
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |