US2776948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resins derived from hydroxymethylfurfural and phenols
Assignee: Dendrol Inc
•
Filing: 1953-08-03
•
Granted: 1957-01-08
•
Expires: 1973-08-03
Abstract
No abstract record available.
Inventors
- 👤 Francis H Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:29
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE PROCESS OF PREPARING A SYNTHETIC RESIN WHICH COMPRISES REACTING HYDROXYMETHYLFURFURAL WITH A PHENOL OF THE CLASS CONSISTING OF HYDROXYBENZENE, RESORCINOL, THE CRESOLS, XYLENOLS AND CRUDE MIXTURES THEREOF UNDER ALKALINE CONDENSING CONDITIONS.
Claim 2
Dependent Claim
32 words
THE PROCESS OF PREPARING A SYNTHETIC RESIN WHICH COMPRISES REACTING HYDROXYMETHYLFURFURAL WITH A PHENOL OF THE CLASS CONSISTING OF HYDROXYBENZENE, RESORCINOL, THE CRESOLS, XYLENOLS AND CRUDE MIXTURES THEREOF UNDER ALKALINE CONDENSING CONDITIONS.
References Cited (Backward Citations)
US1737121A
Cited
GB583021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |