US2791573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous molding composition and process for producing same
Assignee: Wyeth Holdings LLC
•
Filing: 1954-03-12
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Granted: 1957-05-07
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Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Howard T Bangs
- 👤 Raymond A Mazur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:03
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/20; Y; Y10; Y10S; Y10S525/00; Y10S525/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR PRODUCING MOLDED ARTICLES HAVING A VARIEGATED EFFECT WHICH COMPRISES BLENDING A DRIED, PARTICULATE, HEAT-CURABLE AMINOPLAST RESINOUS COMPOSITION HAVING A PLASTICITY OF FROM ABOUT 0.045 TO ABOUT 0.065 INCH AND A A DIFFERENTLY COLORED, DRIED, PARTICULATE,. HEATCURABLE AMINOPLAST RESINOUS COMPOSITION HAVING A PLASTICITY OF FROM ABOUT 0.030 TO ABOUT 0.036 INCH, SAID AMINOPLAST RESINOUS COMPOSITION BEING PREPARED BY REACTING AN ALDEHYDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MELAMINE, UREA, METHYLUREA, PHENYLUREA, THIOUREA, PHENYLTHIOUREA, ALLYLUREA, GUANYLUREA, GUANYLTHIOREA, DICYANDIAMIDE, GUANIDINE, BIGUANIDE, GUANAZOLE AND AMMELINE AND CURING SAID BLENDED COMPOSITION UNDER SUFFICIENT HEAT AND PRESSURE TO AN INSOLUBLE AND INFUSIBLE STATE.
Claim 2
Dependent Claim
103 words
A PROCESS FOR PRODUCING MOLDED ARTICLES HAVING A VARIEGATED EFFECT WHICH COMPRISES BLENDING A DRIED, PARTICULATE, HEAT-CURABLE AMINOPLAST RESINOUS COMPOSITION HAVING A PLASTICITY OF FROM ABOUT 0.045 TO ABOUT 0.065 INCH AND A A DIFFERENTLY COLORED, DRIED, PARTICULATE,. HEATCURABLE AMINOPLAST RESINOUS COMPOSITION HAVING A PLASTICITY OF FROM ABOUT 0.030 TO ABOUT 0.036 INCH, SAID AMINOPLAST RESINOUS COMPOSITION BEING PREPARED BY REACTING AN ALDEHYDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MELAMINE, UREA, METHYLUREA, PHENYLUREA, THIOUREA, PHENYLTHIOUREA, ALLYLUREA, GUANYLUREA, GUANYLTHIOREA, DICYANDIAMIDE, GUANIDINE, BIGUANIDE, GUANAZOLE AND AMMELINE AND CURING SAID BLENDED COMPOSITION UNDER SUFFICIENT HEAT AND PRESSURE TO AN INSOLUBLE AND INFUSIBLE STATE.
References Cited (Backward Citations)
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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) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |