US3234924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for reducing the amount of incompletely burned produts of combustion in the exhaust gases of internal combustion engines
Assignee: Individual
•
Filing: 1963-07-11
•
Granted: 1966-02-15
•
Expires: 1983-07-11
Abstract
No abstract record available.
Inventors
- 👤 Michael G May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:59
CPC Classifications
F; F02; F02D; F02D9/00; F02D9/04; F02D9/06; F02M; F02M26/00; F02M26/52; F02M26/55; F02D2700/00; F02D2700/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A PROCESS FOR OPERATING AN INTERNAL COMBUSTION ENGINE CAPABLE OF OPERATING FROM NO LOAD TO FULL LOAD AND HAVING AN EXHAUST PIPE THROUGH WHICH EXHAUST GASES ARE DISCHARGED, THE STEP OF THROTTLING THE FLOW OF EXHAUST GASES THROUGH SAID EXHAUST PIPE IN A RELATIVELY LOW OPERATING RANGE EXTENDING BETWEEN NO LOAD AND A RELATIVELY LOW LOAD WHICH IS A FRACTION OF THE FULL LOAD OPERATING CONDITION, WHILE PROVIDING NO THROTTLING OF THE EXHAUST GASES AT HIGHER LOADS LOCATED BEYOND SAID OPERAT-
Claim 2
Dependent Claim
82 words
IN A PROCESS FOR OPERATING AN INTERNAL COMBUSTION ENGINE CAPABLE OF OPERATING FROM NO LOAD TO FULL LOAD AND HAVING AN EXHAUST PIPE THROUGH WHICH EXHAUST GASES ARE DISCHARGED, THE STEP OF THROTTLING THE FLOW OF EXHAUST GASES THROUGH SAID EXHAUST PIPE IN A RELATIVELY LOW OPERATING RANGE EXTENDING BETWEEN NO LOAD AND A RELATIVELY LOW LOAD WHICH IS A FRACTION OF THE FULL LOAD OPERATING CONDITION, WHILE PROVIDING NO THROTTLING OF THE EXHAUST GASES AT HIGHER LOADS LOCATED BEYOND SAID OPERAT-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |