US3104735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound attenuating gas pipe
Assignee: Meritor Inc
•
Filing: 1960-11-14
•
Granted: 1963-09-24
•
Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Ludlow Edmund
- 👤 Benjamin H Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:25
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/02; F01N2490/00; F01N2490/15; F01N2490/155; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A SOUND ATTENUATING GAS PIPE FOR CONVEYING AND ATTENUATING THE NOISE LEVEL OF A MOVING GAS STREAM, AN ELONGATED INNER WALL HAVING A GENERALLY CIRCULAR CROSSSECTION AND FORMING A SUBSTANTIALLY UNINTERRUPTED MAIN GAS-FLOW PASSAGE, AN ELONGATED OUTER WALL DISPOSED OUTSIDE SAID INNER WALL, MEANS AXIALLY SPACED ALONG AT LEAST ONE OF SAID WALLS ENGAGING THE OTHER WALL TO MAINTAIN THE PORTIONS OF THE INNER AND OUTER WALLS INTERPOSED BETWEEN SAID MEANS IN SPACED RELATION TO EACH OTHER AND TO FORM THE
Claim 2
Dependent Claim
82 words
IN A SOUND ATTENUATING GAS PIPE FOR CONVEYING AND ATTENUATING THE NOISE LEVEL OF A MOVING GAS STREAM, AN ELONGATED INNER WALL HAVING A GENERALLY CIRCULAR CROSSSECTION AND FORMING A SUBSTANTIALLY UNINTERRUPTED MAIN GAS-FLOW PASSAGE, AN ELONGATED OUTER WALL DISPOSED OUTSIDE SAID INNER WALL, MEANS AXIALLY SPACED ALONG AT LEAST ONE OF SAID WALLS ENGAGING THE OTHER WALL TO MAINTAIN THE PORTIONS OF THE INNER AND OUTER WALLS INTERPOSED BETWEEN SAID MEANS IN SPACED RELATION TO EACH OTHER AND TO FORM THE
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |