US3087579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler
Assignee: Individual
•
Filing: 1961-03-02
•
Granted: 1963-04-30
•
Expires: 1981-03-02
Abstract
No abstract record available.
Inventors
- 👤 Katogir Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:40
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/16; F01N1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A MUFFLER COMPRISING, IN COMBINATION, A MAIN VESSEL HAVING AN INLET AT ONE END AND AN OUTLET AT THE OPPOSITE END, AN AUXILIARY VESSEL, EXPANSIBLE UNITS MOUNTED WITHIN SAID AUXILIARY VESSEL, PARTITION MEANS HAVING APERTURES AND DIVIDING THE INTERIOR OF SAID MAIN VESSEL INTO A PLURALITY OF INDIVIDUAL COMPARTMENTS BETWEEN SAID INLET AND SAID OUTLET, INDIVIDUAL DUCTS COMMUNICATING BETWEEN EACH SAID COMPARTMENT AND THE RESPECTIVE ONE OF SAID EXPANSIBLE UNITS, AND VENT MEANS IN SAID AUXILIARY VESSEL ALLOWING FOR THE EXPANSION AND CONTRACTION OF SAID EXPANSIBLE UNITS.
Claim 2
Dependent Claim
87 words
A MUFFLER COMPRISING, IN COMBINATION, A MAIN VESSEL HAVING AN INLET AT ONE END AND AN OUTLET AT THE OPPOSITE END, AN AUXILIARY VESSEL, EXPANSIBLE UNITS MOUNTED WITHIN SAID AUXILIARY VESSEL, PARTITION MEANS HAVING APERTURES AND DIVIDING THE INTERIOR OF SAID MAIN VESSEL INTO A PLURALITY OF INDIVIDUAL COMPARTMENTS BETWEEN SAID INLET AND SAID OUTLET, INDIVIDUAL DUCTS COMMUNICATING BETWEEN EACH SAID COMPARTMENT AND THE RESPECTIVE ONE OF SAID EXPANSIBLE UNITS, AND VENT MEANS IN SAID AUXILIARY VESSEL ALLOWING FOR THE EXPANSION AND CONTRACTION OF SAID EXPANSIBLE UNITS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |