Patent US3232372A successfully refreshed from Google Patents.
US3232372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound-absorbing covering
Assignee: Societa Applicazioni Gomma Antivibranti SAGA SpA
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Filing: —
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Granted: 1966-02-01
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Expires: 1983-02-01
Abstract
No abstract record available.
Inventors
- 👤 Boschi Antonio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:32
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/001; E21; E21D; E21D11/00; E21D11/38; E21D11/383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN COMBINATION WITH A TUNNEL WALL, A SOUND-ABSORBING COVERING CONSISTING OF A CORRUGATED SHEET MATERIAL FORMING RELATIVELY WIDE AND RELATIVELY NARROW INNER CHANNELS ALTERNATING WITH OUTER CHANNELS EXTENDING LENGTHWISE OF THE TUNNEL AND WHEREIN: THE BOTTOMS OF THE OUTER CHANNELS ARE FITTED TO SAID WALL THEREBY TO MUTUALLY INSULATE THE INNER CHANNELS; THE WIDTH OF THE OUTER CHANNELS MEASURED AT THE LEVEL OF THE BOTTOMS OF THE INNER CHANNELS AMOUNTS TO A FRACTION ONLY OF THE WIDTH OF BOTH THE RELATIVELY WIDE AND RELATIVELY NARROW INNER CHANNELS MEASURED ON THE SAME LEVEL; A RELATIVELY DENSE PLURALITY OF APERTURES IS FORMED IN THE BOTTOM OF EACH OF THE RELATIVELY WIDE CHANNELS AND A RELATIVELY RARE PLURALITY OF APERTURES IS FORMED IN THE BOTTOM OF EACH OF THE RELATIVELY NARROW CHANNELS; AND A FIBROUS FILLING IN EACH OF THE RELATIVELY WIDE INNER CHANNELS ONLY.
Claim 2
Dependent Claim
142 words
IN COMBINATION WITH A TUNNEL WALL, A SOUND-ABSORBING COVERING CONSISTING OF A CORRUGATED SHEET MATERIAL FORMING RELATIVELY WIDE AND RELATIVELY NARROW INNER CHANNELS ALTERNATING WITH OUTER CHANNELS EXTENDING LENGTHWISE OF THE TUNNEL AND WHEREIN: THE BOTTOMS OF THE OUTER CHANNELS ARE FITTED TO SAID WALL THEREBY TO MUTUALLY INSULATE THE INNER CHANNELS; THE WIDTH OF THE OUTER CHANNELS MEASURED AT THE LEVEL OF THE BOTTOMS OF THE INNER CHANNELS AMOUNTS TO A FRACTION ONLY OF THE WIDTH OF BOTH THE RELATIVELY WIDE AND RELATIVELY NARROW INNER CHANNELS MEASURED ON THE SAME LEVEL; A RELATIVELY DENSE PLURALITY OF APERTURES IS FORMED IN THE BOTTOM OF EACH OF THE RELATIVELY WIDE CHANNELS AND A RELATIVELY RARE PLURALITY OF APERTURES IS FORMED IN THE BOTTOM OF EACH OF THE RELATIVELY NARROW CHANNELS; AND A FIBROUS FILLING IN EACH OF THE RELATIVELY WIDE INNER CHANNELS ONLY.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |