US3080940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast muffler
Assignee: ALUMA PRODUCTS CORP
•
Filing: 1959-08-10
•
Granted: 1963-03-12
•
Expires: 1979-08-10
Abstract
No abstract record available.
Inventors
- 👤 Edward M Jobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:43
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1861; F01N1/00; F01N1/02; F01N1/08; F01N1/084; F01N1/12; F01N13/1838; F01N13/1844; F01N13/1855; F01N13/1888; F01N2450/00; F01N2450/24; F01N2450/26; F01N2490/00; F01N2490/02; F01N2490/06; F01N2490/15; F01N2490/155; F01N2530/00; F01N2530/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A MUFFLER, IDENTICAL HALF SHELLS DEFINING A HOLLOW INTERIOR CAVITY, EACH SAID SHELL COMPRISING A GENERALLY FLAT PLATE WITH OPPOSED LONGITUDINAL SIDES AND OPPOSED ENDS EXTENDING IN A COMMON DIRECTION FROM THE PERIPHERY THEREOF, THE LONGITUDINAL SIDES HAVING COMPLEMENTARY INTERLOCKING MEANS ALONG THEIR TERMINAL EDGES, EACH OF THE ENDS HAVING A RECESS CENTRALLY THEREOF, HEAT RADIATING MEANS ON THE EXTERIOR OF SAID PLATE, A TRANSVERSE WALL BETWEEN SAID END WALLS, SAID TRANSVERSE WALL HAVING A PASSAGE THERETHROUGH, SAID TRANSVERSE WALL HAVING GREATER HEAT-ABSORBING
Claim 2
Dependent Claim
84 words
IN A MUFFLER, IDENTICAL HALF SHELLS DEFINING A HOLLOW INTERIOR CAVITY, EACH SAID SHELL COMPRISING A GENERALLY FLAT PLATE WITH OPPOSED LONGITUDINAL SIDES AND OPPOSED ENDS EXTENDING IN A COMMON DIRECTION FROM THE PERIPHERY THEREOF, THE LONGITUDINAL SIDES HAVING COMPLEMENTARY INTERLOCKING MEANS ALONG THEIR TERMINAL EDGES, EACH OF THE ENDS HAVING A RECESS CENTRALLY THEREOF, HEAT RADIATING MEANS ON THE EXTERIOR OF SAID PLATE, A TRANSVERSE WALL BETWEEN SAID END WALLS, SAID TRANSVERSE WALL HAVING A PASSAGE THERETHROUGH, SAID TRANSVERSE WALL HAVING GREATER HEAT-ABSORBING
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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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |