US3104736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound attenuating gas pipe
Assignee: —
•
Filing: —
•
Granted: 1963-09-24
•
Expires: 1980-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:39
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN A SOUND ATTENUATING GAS PIPE FOR CONVEYING AND ATTENUATING THE NOISE LEVEL OF A MOVING GAS STREAM, AN ELONGATED PIPE, AN ELONGATED STAMPING MOUNTED ON THE INNER WALL OF SAID PIPE AND EXTENDING THEREACROSS TO FORM A PARTITIONING WALL DIVIDING THE INTERIOR OF SAID PIPE INTO A MAIN GAS-FLOW PASSAGE AND A PLURALITY OF AXIALLY SPACED RESONATOR VOLUMES, SAID STAMPING HAVING A PLURALITY OF
Claim 2
Dependent Claim
65 words
IN A SOUND ATTENUATING GAS PIPE FOR CONVEYING AND ATTENUATING THE NOISE LEVEL OF A MOVING GAS STREAM, AN ELONGATED PIPE, AN ELONGATED STAMPING MOUNTED ON THE INNER WALL OF SAID PIPE AND EXTENDING THEREACROSS TO FORM A PARTITIONING WALL DIVIDING THE INTERIOR OF SAID PIPE INTO A MAIN GAS-FLOW PASSAGE AND A PLURALITY OF AXIALLY SPACED RESONATOR VOLUMES, SAID STAMPING HAVING A PLURALITY OF
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) | 1966-09-23 | 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 |