Patent US2478387A successfully refreshed from Google Patents.
Patent US3264260A successfully refreshed from Google Patents.
US3264260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyzed phenylsiloxane resins
Assignee: Dow Silicones Corp
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Filing: 1964-04-02
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Granted: 1966-08-02
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Robert W Muller
- 👤 Gust J Kookootsedes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:09
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A THERMOSETTING TRANSFER MOLDING RESIN COMPOSITION COMPRISING AN INTIMATE MIXTURE OF (A) AN UNCURED PHENYLSILOXANE RESIN CONTAINING AT LEAST 0.25 PERCENT BY WEIGHT SILICON-BONDED HYDROXYL GROUPS AND A CATALYTIC AMOUNT OF (B) A COMPOSITION CONSISTING OF FROM 45 TO 70 MOL PERCENT OF A HYDROXYLATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALCOHOLS, CYCLOALIPHATIC ALCOHOLS, AND HYDROXYLATED AROMATIC COMPOUNDS, WHERE, IN ANY HYDROXYLATED AROMATIC COMPOUND, ANY TWO $COH GROUPS PRESENT IN THE SAME MOLECULE ARE SPEARATED BY AT LEAST ONE CARBON ATOM, SAID HYDROXYLATED COMPOUND BEING IN A NONSOLID PHASE AT THE THERMOSETTING TEMPERATURE, AND FROM 30 TO 55 MOL PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF LEAD CARBONATE AND THE OXIDES OF LEAD.
Claim 2
Dependent Claim
118 words
A THERMOSETTING TRANSFER MOLDING RESIN COMPOSITION COMPRISING AN INTIMATE MIXTURE OF (A) AN UNCURED PHENYLSILOXANE RESIN CONTAINING AT LEAST 0.25 PERCENT BY WEIGHT SILICON-BONDED HYDROXYL GROUPS AND A CATALYTIC AMOUNT OF (B) A COMPOSITION CONSISTING OF FROM 45 TO 70 MOL PERCENT OF A HYDROXYLATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ALCOHOLS, CYCLOALIPHATIC ALCOHOLS, AND HYDROXYLATED AROMATIC COMPOUNDS, WHERE, IN ANY HYDROXYLATED AROMATIC COMPOUND, ANY TWO $COH GROUPS PRESENT IN THE SAME MOLECULE ARE SPEARATED BY AT LEAST ONE CARBON ATOM, SAID HYDROXYLATED COMPOUND BEING IN A NONSOLID PHASE AT THE THERMOSETTING TEMPERATURE, AND FROM 30 TO 55 MOL PERCENT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF LEAD CARBONATE AND THE OXIDES OF LEAD.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |