US3168494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furfural crosslinked furfuryl alcohol resin
Assignee: American Pipe and Construction Co
•
Filing: 1959-11-09
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Granted: 1965-02-02
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Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Metil Ignatius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:18
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/36; C08G16/00; C08G16/02; C08G16/025; C08G16/0256; C08G16/0262; C08L; C08L71/00; C08L71/08; C08L71/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
A COMPOSITION CAPABLE OF BEING CURED TO A HARD, SET, FINAL RESIN IN AN ACIDIC ENVIRONMENT COMPRISING (A) A COMPONENT CONSISTING OF A CONDENSATION HOMOPOLYMER OF FURFURYL ALCOHOL OF A VISCOSITY OF 30 TO 200 POISES AND FORMED BY POLYMERIZING FURFURYL ALCOHOL IN AN ACIDIC ENVIRONMENT FREE OF FURFURAL AND (B) FURFURAL, THE AMOUNT OF (B) BEING 10% TO 400% OF THE WIEGHT OF (A).
References Cited (Backward Citations)
US2343973A
Cited
US2416038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |