Patent US3298978A successfully refreshed from Google Patents.
US3298978A
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Interpolymers of aldehyde modified amides and polyallyl ethers of polyhydric alcohols
Assignee: Freeman Chemical Corp
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Filing: 1962-10-12
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Granted: 1967-01-17
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 William F Rutherford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:42
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F22/00; C08F22/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A THERMOSETTING, UNGELLED, RESINOUS COMPOSITION COMPRISING AN INTERPOLYMER OF MONOMER CONSISTING ESSENTIALLY OF: FROM 5 TO 30 PERCENT OF (A) AN UNSATURATED AMIDE SELECTED FROM THE CLASS CONSISTING OF ACRYLAMIDE, ALKYL ACRYLAMIDES, ITACONIC DIAMIDE, MALEURIC ACID AND ALKYL ESTERS OF MALEURIC ACID; (B) A HYDROXY-ALKYL-POLYALLYL-ETHER HAVING THE FORMULA
Claim 2
Dependent Claim
48 words
A THERMOSETTING, UNGELLED, RESINOUS COMPOSITION COMPRISING AN INTERPOLYMER OF MONOMER CONSISTING ESSENTIALLY OF: FROM 5 TO 30 PERCENT OF (A) AN UNSATURATED AMIDE SELECTED FROM THE CLASS CONSISTING OF ACRYLAMIDE, ALKYL ACRYLAMIDES, ITACONIC DIAMIDE, MALEURIC ACID AND ALKYL ESTERS OF MALEURIC ACID; (B) A HYDROXY-ALKYL-POLYALLYL-ETHER 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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |