Patent US3247149A successfully refreshed from Google Patents.
US3247149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized urea-formaldehyde resin core binder and method of preparation
Assignee: International Motors LLC
•
Filing: 1963-03-01
•
Granted: 1966-04-19
•
Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Arnold A Alek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:48
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/20; C09J161/22; C09J161/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A STABILIZED CURABLE ADHESIVE RESIN COMPOSITION CONSISTING OF A MIXTURE OF ABOUT ONE PART BY WEIGHT OF UREA, ABOUT ONE PART BY WEIGHT OF WATER, ABOUT TWO PARTS BY WEIGHT OF A WATER SOLUBLE UREA-FORMALDEHYDE RESIN CONCENTRATE, SAID CONCENTRATE CONSISTING OF ABOUT 85% BY WEIGHT OF THE REACTION PRODUCT FORMED BY THE REACTION OF 1 TO 2.75 MOLE OF FORMALDEHYDE TO ONE MOL OF UREA PROPORTION DISSOVED IN ABOUT 15% BY WEIGHT OF WATER, AND AN EFFECTIVE AMOUNT UP TO ABOUT 0.04 PART BY WEIGHT OF A STABILIZING AGENT SELECTED FROM THE GROUP CONSISTING OF OCTYL ALCOHOL AND DECYL ALCOHOL.
Claim 2
Dependent Claim
100 words
A STABILIZED CURABLE ADHESIVE RESIN COMPOSITION CONSISTING OF A MIXTURE OF ABOUT ONE PART BY WEIGHT OF UREA, ABOUT ONE PART BY WEIGHT OF WATER, ABOUT TWO PARTS BY WEIGHT OF A WATER SOLUBLE UREA-FORMALDEHYDE RESIN CONCENTRATE, SAID CONCENTRATE CONSISTING OF ABOUT 85% BY WEIGHT OF THE REACTION PRODUCT FORMED BY THE REACTION OF 1 TO 2.75 MOLE OF FORMALDEHYDE TO ONE MOL OF UREA PROPORTION DISSOVED IN ABOUT 15% BY WEIGHT OF WATER, AND AN EFFECTIVE AMOUNT UP TO ABOUT 0.04 PART BY WEIGHT OF A STABILIZING AGENT SELECTED FROM THE GROUP CONSISTING OF OCTYL ALCOHOL AND DECYL ALCOHOL.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |