US3083524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter for the exhaust gases of internal combustion engines and the like
Assignee: LILLIAN P DOSIE
•
Filing: 1960-08-18
•
Granted: 1963-04-02
•
Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Erwin F Dosie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/02; F01N3/037; F01N3/04; F01N3/05; F01N3/28; F01N3/2882; F01N3/38; F01N2230/00; F01N2230/02; F01N2240/00; F01N2240/02; F01N2240/14; F01N2330/00; F01N2330/10; F01N2330/101; F01N2330/102; F01N2450/00; F01N2450/30; F01N2530/00; F01N2530/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A UNIT FOR ASSOCIATION WITH THE EXHAUST PIPES OF AN INTERNAL COMBUSTION ENGINE FOR REMOVING CARBON AND OTHER OBNOXIOUS GASES PRIOR TO THE ENTRANE OF SAID GASES INTO THE ATMOSPHERE COMPRISING A CASING HAVING A MAIN FILTERING COMPARTMENT THEREIN, FILTERING MATERIAL IN SAID MAIN COMPARTMENT, AND SAID CASING ALSO HAVING CHAMBERS AT THE OPPOSITE SIDES OF THE MAIN COMPARTMENT FOR INITIALLY RECEIVING THE EXHAUST GASES, SAID CHAMBERS HAVING COMMUNICATION WITH THE MAIN COMPARTMENT FOR LEADING EXHAUST GASES INTO THE OPPOSITE SIDES OF THE MAIN COMPARTMENT FOR THE COMMINGLING OF THE EXHAUST GASES THEREIN AND IN AND THROUGH THE FILTERING MATERIAL, MEANS FOR LEADING THE EXHAUST GASES INTO THE CHAMBERS, SAID CHAMBERS
Claim 2
Dependent Claim
111 words
A UNIT FOR ASSOCIATION WITH THE EXHAUST PIPES OF AN INTERNAL COMBUSTION ENGINE FOR REMOVING CARBON AND OTHER OBNOXIOUS GASES PRIOR TO THE ENTRANE OF SAID GASES INTO THE ATMOSPHERE COMPRISING A CASING HAVING A MAIN FILTERING COMPARTMENT THEREIN, FILTERING MATERIAL IN SAID MAIN COMPARTMENT, AND SAID CASING ALSO HAVING CHAMBERS AT THE OPPOSITE SIDES OF THE MAIN COMPARTMENT FOR INITIALLY RECEIVING THE EXHAUST GASES, SAID CHAMBERS HAVING COMMUNICATION WITH THE MAIN COMPARTMENT FOR LEADING EXHAUST GASES INTO THE OPPOSITE SIDES OF THE MAIN COMPARTMENT FOR THE COMMINGLING OF THE EXHAUST GASES THEREIN AND IN AND THROUGH THE FILTERING MATERIAL, MEANS FOR LEADING THE EXHAUST GASES INTO THE CHAMBERS, SAID CHAMBERS
References Cited (Backward Citations)
US1622498A
Cited
US1824078A
Cited
US2038567A
Cited
US2004865A
Cited
US2772147A
Cited
US2763982A
Cited
US2737260A
Cited
US2795103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |