US2572798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph record molding compositions and records
Assignee: Agrashell Inc
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Filing: 1947-11-28
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Granted: 1951-10-23
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Expires: 1967-11-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:23
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L101/00; C08L101/02; C08L101/06; G; G11; G11B; G11B3/00; G11B3/68; G11B3/70; Y; Y10; Y10S; Y10S260/00; Y10S260/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PHONOGRAPH RECORD MOLDING COMPOSITION COMPRISING A VINYL RESIN BASE, THE FILLER CONTENT OF WHICH CONSISTS ESSENTIALLY ONLY OF A VERY FINELY DIVIDED, HARD LIGNO-CELLULOSE EXTENDER CONTAINING AT LEAST 45% OF COMBINED PENTOSANS, HEXOSANS AND LIGNINS, THE PARTICLES OF WHICH ARE NOT MORE THAN 30 MICRONS IN DIAMETER.
Claim 2
Dependent Claim
48 words
A PHONOGRAPH RECORD MOLDING COMPOSITION COMPRISING A VINYL RESIN BASE, THE FILLER CONTENT OF WHICH CONSISTS ESSENTIALLY ONLY OF A VERY FINELY DIVIDED, HARD LIGNO-CELLULOSE EXTENDER CONTAINING AT LEAST 45% OF COMBINED PENTOSANS, HEXOSANS AND LIGNINS, THE PARTICLES OF WHICH ARE NOT MORE THAN 30 MICRONS IN DIAMETER.
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) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |