US3214902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust treating device
Assignee: Individual
•
Filing: 1964-05-28
•
Granted: 1965-11-02
•
Expires: 1984-05-28
Abstract
No abstract record available.
Inventors
- 👤 Walter D Maring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:39
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N2470/00; F01N2470/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN AN EXHAUST TREATING DEVICE, A TUBULAR SHELL CLOSED AT ITS ENDS AND HAVING AN EXHAUST GAS INLET AND AN EXHAUST OUTLET, MEANS IN SAID SHELL TO WASH EXHAUST GASES ENTERING SAID SHELL, MEANS TO MIX SAID WASHED EXHAUST GASES WITH ATMOSPHERIC AIR WITHIN SAID SHELL, MEANS IN SAID SHELL TO IGNITE SAID GAS-AIR MIXTURE, AND MEANS IN SAID SHELL TO WASH BURNT GASES AND TO CONVEY THEM TO THE EXHAUST OUTLET.
Claim 2
Dependent Claim
72 words
IN AN EXHAUST TREATING DEVICE, A TUBULAR SHELL CLOSED AT ITS ENDS AND HAVING AN EXHAUST GAS INLET AND AN EXHAUST OUTLET, MEANS IN SAID SHELL TO WASH EXHAUST GASES ENTERING SAID SHELL, MEANS TO MIX SAID WASHED EXHAUST GASES WITH ATMOSPHERIC AIR WITHIN SAID SHELL, MEANS IN SAID SHELL TO IGNITE SAID GAS-AIR MIXTURE, AND MEANS IN SAID SHELL TO WASH BURNT GASES AND TO CONVEY THEM TO THE EXHAUST OUTLET.
References Cited (Backward Citations)
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Cited
US1292283A
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US1402814A
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US1538335A
Cited
US1750342A
Cited
US2402087A
Cited
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Cited
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Cited
US3032968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |