US2858231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound-deadening composition of matter
Assignee: Sinclair Refining Co
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Filing: 1954-01-14
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Granted: 1958-10-28
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Expires: 1974-01-14
Abstract
No abstract record available.
Inventors
- 👤 William B Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:23
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B2001/742
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A SOUND-DEADENING COMPOSITION CONSISTING ESSENTIALLY OF A SOUND-DEADENING FILLER MATERIAL SELECTED FROM THE GROUP CONSISTING OF SOUND-DEADENING FIBROUS MATERIAL AND CORK, AND AN AROMATIC PETROLEUM RESIN FRACTION HAVING AN API GRAVITY OF BELOW ABOUT 8.0, A RING AND BALL SOFTENING POINT OF ABOUT 100 TO 150*F., A NEEDLE PENETRATION AT 77*F. OF ABOUT 10 TO 200, A VISCOSITY IN SAYBOLT UNIVERSAL SECONDS AT 210*F. OF ABOUT 2,00 TO 15000 AND A VISCOSITY INDEX BELOW ABOUT MINUS 100 WHEREIN THE PROPORTION OF THE FILTER MATERIAL TO THE RESIN IS FROM ABOUT 0.7 TO 1.5 PARTAS TO 1 PART.
Claim 2
Dependent Claim
97 words
A SOUND-DEADENING COMPOSITION CONSISTING ESSENTIALLY OF A SOUND-DEADENING FILLER MATERIAL SELECTED FROM THE GROUP CONSISTING OF SOUND-DEADENING FIBROUS MATERIAL AND CORK, AND AN AROMATIC PETROLEUM RESIN FRACTION HAVING AN API GRAVITY OF BELOW ABOUT 8.0, A RING AND BALL SOFTENING POINT OF ABOUT 100 TO 150*F., A NEEDLE PENETRATION AT 77*F. OF ABOUT 10 TO 200, A VISCOSITY IN SAYBOLT UNIVERSAL SECONDS AT 210*F. OF ABOUT 2,00 TO 15000 AND A VISCOSITY INDEX BELOW ABOUT MINUS 100 WHEREIN THE PROPORTION OF THE FILTER MATERIAL TO THE RESIN IS FROM ABOUT 0.7 TO 1.5 PARTAS TO 1 PART.
References Cited (Backward Citations)
US1989045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |