Patent BE551058A successfully refreshed from Google Patents.
Patent US3117098A successfully refreshed from Google Patents.
US3117098A
Expired / Lapsed
US
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Process of making a urea-formaldehyde resin in the form of an undried, cured, three dimensional reticulated structure and product obtained therefrom
Assignee: Kimberly Clark Tissue Co
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Filing: 1960-04-06
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Granted: 1964-01-07
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 James J Eberl
- 👤 Coppick Sydney
- 👤 Henry W Steinmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:56
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/38; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/50; C08J2361/00; C08J2361/20; C08J2361/22; C08J2361/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE PROCESS OF MAKING A UREA-FORMALDEHYDE FOAMED RESIN IN THE FORM OF AN UNDRIED, CURED, THREE-DIMENSIONAL RETICULATED STRUCTURE WHICH COMPRISES HEATING AT A TEMPERATURE OF FROM 50-100*C. A THIN WALLED, MOIST, PRE-SET AND INCOMPLETELY CURED UREA-FORMALDEHYDE RESIN FOAM CONTAINING AN ACID CURING CATALYST IN A MOIST ATMOSPHERE MAINTAINED AT 10-60% HUMIDITY UNTIL THE WALLS OF SUCH FOAM HAVE BEEN COALESCED INTO THE THREE-DIMENSIONAL STRANDS STRUCTURE.
Claim 2
Dependent Claim
65 words
THE PROCESS OF MAKING A UREA-FORMALDEHYDE FOAMED RESIN IN THE FORM OF AN UNDRIED, CURED, THREE-DIMENSIONAL RETICULATED STRUCTURE WHICH COMPRISES HEATING AT A TEMPERATURE OF FROM 50-100*C. A THIN WALLED, MOIST, PRE-SET AND INCOMPLETELY CURED UREA-FORMALDEHYDE RESIN FOAM CONTAINING AN ACID CURING CATALYST IN A MOIST ATMOSPHERE MAINTAINED AT 10-60% HUMIDITY UNTIL THE WALLS OF SUCH FOAM HAVE BEEN COALESCED INTO THE THREE-DIMENSIONAL STRANDS STRUCTURE.
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |