US3004293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating a foamy material having a high water content and product obtained thereby
Assignee: Individual
•
Filing: 1959-09-15
•
Granted: 1961-10-17
•
Expires: 1979-09-15
Abstract
No abstract record available.
Inventors
- 👤 Werner H Kreidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:21
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/33; B; B29; B29C; B29C44/00; B29C44/02; B29C44/10; B29C44/34; B29C44/36; B29C44/46; B29C44/461; B29C67/00; B29C67/20; B29C67/207; B29C70/00; B29C70/58; B32; B32B; B32B29/00; B32B29/002; B32B29/007; B32B29/04; B32B3/00; B32B3/26; B32B3/30; B32B5/00; B32B5/16; B29K; B29K2061/00; B29K2061/20; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/06; B32B2262/062; B32B2262/067; B32B2262/10; B32B2262/101; B32B2264/00; B32B2264/02; B32B2264/0214; B32B2307/00; B32B2307/10; B32B2307/102; B32B2307/30; B32B2307/304; B32B2439/00; B32B2439/70; B32B2553/00; C08J2361/00; C08J2361/20; C08J2361/22; C08J2361/24; Y; Y10; Y10S; Y10S264/00; Y10S264/07; Y10S29/00; Y10S29/029; Y10S521/00; Y10S521/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
THE METHOD OF FORMING A PLIABLE COHERENT COMPRESSED MASS OF CELLULAR UREA FORMALDEHYDE FOAM PARTICLES FROM THE WET MATERIAL IN THE FORM OF A GEL OF DENSITY IN DRY FORM BETWEEN 0.1 POUND PER CUBIC FOOT AND 1 POUND PER CUBIC FOOT AND CONTAINING AT LEAST 70 PERCENT OF MOISTURE, COMPRISING THE STEPS OF COMMINUTING SAID WET MATERIAL TO FORM SMALL PARTICLES LESS THAN 1 INCH LINEAR DIMENSION AND DRY BULK WEIGHT LESS THAN 2 POUNDS PER CUBIC FOOT, DRYING SAID PARTICLES TO PROVIDE A DRY FLUFFY GRANULAR MATERIAL ADAPTED TO FORM A FELTED PLIABLE POROUS MASS UNDER COMPRESSION IN THE PRESENCE OF MOISTURE WITHOUT SUBSTANTIALLY IMPAIRING THE CELLULAR STRUCTURE OF SAID PARTICLES IN THE COHERED MASS, AND HEATING WHILE COMPRESSING THE PARTICLES TO FORM A COHERENT POROUS ARTICLE OF BULK WEIGHT BETWEEN 0.2 POUND PER CUBIC FOOT AND 2 POUNDS PER CUBIC FOOT.
Claim 2
Independent Claim
144 words
THE METHOD OF FORMING A PLIABLE COHERENT COMPRESSED MASS OF CELLULAR UREA FORMALDEHYDE FOAM PARTICLES FROM THE WET MATERIAL IN THE FORM OF A GEL OF DENSITY IN DRY FORM BETWEEN 0.1 POUND PER CUBIC FOOT AND 1 POUND PER CUBIC FOOT AND CONTAINING AT LEAST 70 PERCENT OF MOISTURE, COMPRISING THE STEPS OF COMMINUTING SAID WET MATERIAL TO FORM SMALL PARTICLES LESS THAN 1 INCH LINEAR DIMENSION AND DRY BULK WEIGHT LESS THAN 2 POUNDS PER CUBIC FOOT, DRYING SAID PARTICLES TO PROVIDE A DRY FLUFFY GRANULAR MATERIAL ADAPTED TO FORM A FELTED PLIABLE POROUS MASS UNDER COMPRESSION IN THE PRESENCE OF MOISTURE WITHOUT SUBSTANTIALLY IMPAIRING THE CELLULAR STRUCTURE OF SAID PARTICLES IN THE COHERED MASS, AND HEATING WHILE COMPRESSING THE PARTICLES TO FORM A COHERENT POROUS ARTICLE OF BULK WEIGHT BETWEEN 0.2 POUND PER CUBIC FOOT AND 2 POUNDS PER CUBIC FOOT.
References Cited (Backward Citations)
US2222028A
Cited
US2211429A
Cited
US2373401A
Cited
US2755509A
Cited
US2893063A
Cited
US2819993A
Cited
US2819994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |