US3109510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust muffler
Assignee: Muffler Corp of America
•
Filing: 1959-08-11
•
Granted: 1963-11-05
•
Expires: 1979-08-11
Abstract
No abstract record available.
Inventors
- 👤 Milton V Phelan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:20
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN AN EXHAUST MUFFLER FOR AN INTERNAL COMBUSTION ENGINE; A FERROUS METAL CASING THROUGH WHICH EXHAUST GASES ARE ADAPTED TO FLOW; SAID CASING HAVING AN EXHAUST GAS INLET AND AN OUTLET; AND A RELATIVELY SMALL MASS OF SCAVENGING METAL SECURED WITHIN SAID CASING TO PROTECT THE CASING FROM CORROSION BY COMBINING WITH THE CORRO-
Claim 2
Dependent Claim
54 words
IN AN EXHAUST MUFFLER FOR AN INTERNAL COMBUSTION ENGINE; A FERROUS METAL CASING THROUGH WHICH EXHAUST GASES ARE ADAPTED TO FLOW; SAID CASING HAVING AN EXHAUST GAS INLET AND AN OUTLET; AND A RELATIVELY SMALL MASS OF SCAVENGING METAL SECURED WITHIN SAID CASING TO PROTECT THE CASING FROM CORROSION BY COMBINING WITH THE CORRO-
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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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |