Patent US3284404A successfully refreshed from Google Patents.
US3284404A
Expired / Lapsed
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Environmental stress-crack resistant polyesterurethanes containing triacetic acid substituted alkylene diamines
Assignee: Goodrich Corp
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Filing: 1963-08-09
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Granted: 1966-11-08
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Expires: 1983-08-09
Abstract
No abstract record available.
Inventors
- 👤 Charles S Schollenberger
- 👤 Walter T Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/175
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A COMPOSITION OF MATTER COMPRISING IN COMBINATION 100 PARTS OF AN ESSENTIALLY LINEAR POLYESTERURETHANE ELASTOMER AND FROM 0.5 TO 5.0 PARTS OF A TRI-ACETIC ACID-SUBSTITUTED ALKYLENE DIAMINE HAVING THE FORMULA HOOC-CH2-N(-R)-(R''-N)(-CH2-COOH)2 WHEREIN R IS A HYDROCARBON GROUP HAVING FROM 6 TO 20 CARBON ATOMS ON THE AVERAGE AND R'' IS AN ALKYLENE GROUP HAVING FROM 2 TO 10 CARBON ATOMS.
Claim 2
Dependent Claim
60 words
A COMPOSITION OF MATTER COMPRISING IN COMBINATION 100 PARTS OF AN ESSENTIALLY LINEAR POLYESTERURETHANE ELASTOMER AND FROM 0.5 TO 5.0 PARTS OF A TRI-ACETIC ACID-SUBSTITUTED ALKYLENE DIAMINE HAVING THE FORMULA HOOC-CH2-N(-R)-(R''-N)(-CH2-COOH)2 WHEREIN R IS A HYDROCARBON GROUP HAVING FROM 6 TO 20 CARBON ATOMS ON THE AVERAGE AND R'' IS AN ALKYLENE GROUP HAVING FROM 2 TO 10 CARBON ATOMS.
References Cited (Backward Citations)
US2413857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |