US3074391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of automotive exhaust gases
Assignee: Universal Oil Products Co
•
Filing: 1961-11-29
•
Granted: 1963-01-22
•
Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/04; F02M31/06; F02M31/08; F02B; F02B51/00; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A METHOD FOR CONTROLLING THE QUANTITY OF UNBURNED OXIDIZABLE COMPONENTS BEING DISCHARGED WITH AN ENGINE EXHAUST STREAM WHICH COMPRISES, DRYING THE AIR STREAM BEING DRAWN INTO SAID ENGINE TO LESS THAN ABOUT 12 MILLIMETERS OF PARTIAL PRESSURE OF WATER VAPOR IN SAID AIR STREAM.
Claim 2
Independent Claim
44 words
A METHOD FOR CONTROLLING THE QUANTITY OF UNBURNED OXIDIZABLE COMPONENTS BEING DISCHARGED WITH AN ENGINE EXHAUST STREAM WHICH COMPRISES, DRYING THE AIR STREAM BEING DRAWN INTO SAID ENGINE TO LESS THAN ABOUT 12 MILLIMETERS OF PARTIAL PRESSURE OF WATER VAPOR IN SAID AIR STREAM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |