US3168368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating exhaust gases of internal combustion engines
Assignee: Air Products and Chemicals Inc
•
Filing: 1960-04-27
•
Granted: 1965-02-02
•
Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Mills George Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:51
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; C10L1/00; C10L1/10; C10L1/14; C10L10/10; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/206; F01N2610/00; F01N2610/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1855165A
Cited
US2071119A
Cited
US2410829A
Cited
US2747976A
Cited
US2902983A
Cited
US2909415A
Cited
US2942932A
Cited
US2913413A
Cited
US2991160A
Cited
US3024593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |