US3335813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Tedan Inc
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Filing: 1966-06-02
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Granted: 1967-08-15
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Expires: 1986-06-02
Abstract
No abstract record available.
Inventors
- 👤 Theron R Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:01
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N13/1844; F01N2260/00; F01N2260/06; F01N2470/00; F01N2470/02; F01N2470/20; F01N2470/24; F01N2530/00; F01N2530/02; F01N2530/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A MUFFLER HAVING A FRUSTOCONICAL BODY, A PLURALITY OF POSITIONING FINGERS EXTENDING RADIALLY OUTWARDLY FROM EACH END OF THE BODY, THE OUTER ENDS OF THE FINGERS AT BOTH ENDS ALL LYING WITHIN AN IMAGINARY CIRCLE HAVING A LIKE DIAMETER CIRCUMSCRIBED AROUND THE ENDS OF THE FINGERS, THE DIAMETER OF THE CIRCLE BEING GREATER THAN THE LARGER DIAMETER OF THE BODY, SAID BODY HAVING A PLURALITY OF NARROW SLITS EXTENDING LONGIDINALLY THEREOF AND EQUIANGULARLY SPACED AROUND THE BODY RELATIVE TO THE AXIAL CENTER THEREOF, THE AREA OF THE SLITS APPROXIMATING THE CROSSSECTIONAL AREA OF THE IMAGINARY CIRCLE.
Claim 2
Dependent Claim
96 words
A MUFFLER HAVING A FRUSTOCONICAL BODY, A PLURALITY OF POSITIONING FINGERS EXTENDING RADIALLY OUTWARDLY FROM EACH END OF THE BODY, THE OUTER ENDS OF THE FINGERS AT BOTH ENDS ALL LYING WITHIN AN IMAGINARY CIRCLE HAVING A LIKE DIAMETER CIRCUMSCRIBED AROUND THE ENDS OF THE FINGERS, THE DIAMETER OF THE CIRCLE BEING GREATER THAN THE LARGER DIAMETER OF THE BODY, SAID BODY HAVING A PLURALITY OF NARROW SLITS EXTENDING LONGIDINALLY THEREOF AND EQUIANGULARLY SPACED AROUND THE BODY RELATIVE TO THE AXIAL CENTER THEREOF, THE AREA OF THE SLITS APPROXIMATING THE CROSSSECTIONAL AREA OF THE IMAGINARY CIRCLE.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |