Patent US3225004A successfully refreshed from Google Patents.
US3225004A
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Thermosetting plastic compositions derived from polyglycidyl ethers of bis (p-hydroxyphenyl) sulfones and certain fatty guanamines and process of preparing same
Assignee: Individual
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Filing: 1964-12-01
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Granted: 1965-12-21
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Expires: 1984-12-01
Abstract
No abstract record available.
Inventors
- 👤 Dwight E Peerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:44
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/302; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/508; C08G59/5086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PARTIALLY CURED COMPOSITION, STABLE FOR EXTENDED PERIODS OF TIME AT ROOM TEMPERATURE AND CAPABLE OF BEING CURED AT ELEVATED TEMPERATURES TO FORM AN INFUSIBLE AND INSOLUBLE POLYMER, CONSISTING ESSENTIALLY OF A REACTION PRODUCT PREPARED BY THE PROCESS CONSISTING OF: (1) REACTING, AT A TEMPERATURE IN THE RANGE OF ABOUT 120 TO 210*C., A POLYGLYCIDYL ETHER OF A BIS (P-HYDROXYPHENYL) SULFONE AND A GUANAMINE HAVING THE FORMULA
Claim 2
Dependent Claim
67 words
A PARTIALLY CURED COMPOSITION, STABLE FOR EXTENDED PERIODS OF TIME AT ROOM TEMPERATURE AND CAPABLE OF BEING CURED AT ELEVATED TEMPERATURES TO FORM AN INFUSIBLE AND INSOLUBLE POLYMER, CONSISTING ESSENTIALLY OF A REACTION PRODUCT PREPARED BY THE PROCESS CONSISTING OF: (1) REACTING, AT A TEMPERATURE IN THE RANGE OF ABOUT 120 TO 210*C., A POLYGLYCIDYL ETHER OF A BIS (P-HYDROXYPHENYL) SULFONE AND A GUANAMINE HAVING THE FORMULA
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |