US2792309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph records containing silicone oils and resins
Assignee: Texaco Development Corp
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Filing: 1953-10-28
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Granted: 1957-05-14
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Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Charles F Teichmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:31
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/68; G11B3/70; G11B3/705; G01; G01K; G01K5/00; G01K5/32; G01K5/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PHONOGRAPH RECORD HAVING IMPRESSED THEREIN TONE GROOVES AND CHARACTERIZED BY THE ABSENCE OF GAS BUBBLES IN THE TONE GROOVE SURFACE THEREOF AND SUBSTANTIAL ELIMINATION OF NEEDLE SCRATCH WHEN PLAYED, SAID RECORD COMPRISING A MOLDABLE PLASTIC MATERIAL SUITABLE FOR PHONOGRAPH RECORDS SELECTED FROM THE GROP CONSISTING OF CELLULOSE ACETATE, SHELLAC, POLYVINYL CHLORIDE, POLYVINYL ACETATE, POLYVINYL BENZENE, AND COPOLYMERS OF SAID POLYVINYL COMPOUNDS WITH ON ANOTHER, SAID RECORD CONTAINING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMETHYL SILOXANE OILS AND RESINS IN AN AMOUNT FROM ABOUT 0.5 TO 1% BY WEIGHT.
Claim 2
Dependent Claim
91 words
A PHONOGRAPH RECORD HAVING IMPRESSED THEREIN TONE GROOVES AND CHARACTERIZED BY THE ABSENCE OF GAS BUBBLES IN THE TONE GROOVE SURFACE THEREOF AND SUBSTANTIAL ELIMINATION OF NEEDLE SCRATCH WHEN PLAYED, SAID RECORD COMPRISING A MOLDABLE PLASTIC MATERIAL SUITABLE FOR PHONOGRAPH RECORDS SELECTED FROM THE GROP CONSISTING OF CELLULOSE ACETATE, SHELLAC, POLYVINYL CHLORIDE, POLYVINYL ACETATE, POLYVINYL BENZENE, AND COPOLYMERS OF SAID POLYVINYL COMPOUNDS WITH ON ANOTHER, SAID RECORD CONTAINING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMETHYL SILOXANE OILS AND RESINS IN AN AMOUNT FROM ABOUT 0.5 TO 1% BY WEIGHT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |