US2565538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Special purpose synthetic resin mixture and method of making the same
Assignee: Individual
•
Filing: 1947-10-20
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Granted: 1951-08-28
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Expires: 1967-10-20
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Welch
- 👤 Oliver G Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:01
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/34; Y; Y10; Y10S; Y10S524/00; Y10S524/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SYNTHETIC RESIN MATERIAL CONSISTING ESSENTIALLY OF A MIXTURE OF THE FOLLOWING INGREDIENTS IN THE PROPORTIONS INDICATED: (A) THE REACTION PRODUCT OF 2 PARTS OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MELAMINE AND UREA WITH 4 PARTS OF A 37% FORMALDEHYDE SOLUTION; (B) 8 PARTS OF THE REACTION PRODUCT OF EQUAL MOLS OF PHENOL AND FORMALDEHYDE, AND (C) 1 PART OF A RESIN CATALYST CONSISTING OF THE REACTION PRODUCT RESULTING FROM THE PARTIAL CONDENSATION OF AN ANHYDRIDE FROM THE GROUP CONSISTING OF PHTHALIC ANHYDRIDE AND MALEIC ANHYDRIDE AND A HYDROXY COMPOUND FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL AND GLYCERIN IN PROPORTIONS OF BETWEEN 1 AND 2 PARTS OF THE ANHYDRIDE TO EACH PART OF THE HYDROXY COMPOUND.
Claim 2
Dependent Claim
120 words
A SYNTHETIC RESIN MATERIAL CONSISTING ESSENTIALLY OF A MIXTURE OF THE FOLLOWING INGREDIENTS IN THE PROPORTIONS INDICATED: (A) THE REACTION PRODUCT OF 2 PARTS OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF MELAMINE AND UREA WITH 4 PARTS OF A 37% FORMALDEHYDE SOLUTION; (B) 8 PARTS OF THE REACTION PRODUCT OF EQUAL MOLS OF PHENOL AND FORMALDEHYDE, AND (C) 1 PART OF A RESIN CATALYST CONSISTING OF THE REACTION PRODUCT RESULTING FROM THE PARTIAL CONDENSATION OF AN ANHYDRIDE FROM THE GROUP CONSISTING OF PHTHALIC ANHYDRIDE AND MALEIC ANHYDRIDE AND A HYDROXY COMPOUND FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL AND GLYCERIN IN PROPORTIONS OF BETWEEN 1 AND 2 PARTS OF THE ANHYDRIDE TO EACH PART OF THE HYDROXY COMPOUND.
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) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |