US2919255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymer of epoxy resin, polyamide resin and polysulfide resin
Assignee: PPG Industries Inc
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Filing: 1956-03-27
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Granted: 1959-12-29
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Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Donald P Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:10
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AS A NEW COMPOSITION OF MATTER, A LIQUID MIXTURE OF (A) AN EPOXY RESIN WHICH FORMED BY REACTION OF A BIS(-HYDROXY -3-ALLYLPHENYL)-DIMETHYLMETHANE AND AN EPIHALOHYDRIN; (B) A LIQUID POLYAMIDE RESIN OF A MOLECPRODUCT OF AN ETHYLENE POLYAMINE AND A DIMER ACID FROM A DRYING OIL ACID CONTAINING ABOUT 36 CARBON ATOMS; AND (C) A LIQUID ORGANIC POLYSULFIDE POLYMER WHICH IS THE REACTION PRODUCT OF BIS(2-CHLOROETHYL) FORMAL AND AN ALKALI METAL POLYSULFIDE.
Claim 2
Dependent Claim
71 words
AS A NEW COMPOSITION OF MATTER, A LIQUID MIXTURE OF (A) AN EPOXY RESIN WHICH FORMED BY REACTION OF A BIS(-HYDROXY -3-ALLYLPHENYL)-DIMETHYLMETHANE AND AN EPIHALOHYDRIN; (B) A LIQUID POLYAMIDE RESIN OF A MOLECPRODUCT OF AN ETHYLENE POLYAMINE AND A DIMER ACID FROM A DRYING OIL ACID CONTAINING ABOUT 36 CARBON ATOMS; AND (C) A LIQUID ORGANIC POLYSULFIDE POLYMER WHICH IS THE REACTION PRODUCT OF BIS(2-CHLOROETHYL) FORMAL AND AN ALKALI METAL POLYSULFIDE.
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) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |