US3293095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing oil absorptive laminates
Assignee: Formica Corp
•
Filing: 1962-10-10
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Granted: 1966-12-20
•
Expires: 1982-10-10
Abstract
No abstract record available.
Inventors
- 👤 John C Pitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:56
CPC Classifications
B; B32; B32B; B32B27/00; F; F16; F16C; F16C33/00; F16C33/30; F16C33/38; F16C33/44; F16N; F16N7/00; F16N7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PROCESS FOR THE PREPARATION OF AN OIL-ABSORPTIVE LAMINATED ARTICLE WHICH COMPRISES(1) IMPREGNATING A POROUS BASE MATERIAL WITH AN AQUEOUS SOLUTION OF A LEACHABLE SOLID MATERIAL, (2) DRYING THE RESULTING IMPREGNATED BASE MATERIAL, (3) IMPREGNATING THE RESULTING DRIED, LEACHABLE SOLID MATERIAL-IMPREGNATED BASE MATERIAL WITH A WATER-INSOLUBLE, ORGANIC SOLVENT-SOLUBLE THERMOSETTING PHENOLIC RESIN SYRUP, SAID LEACHABLE SOLID MATERIAL BEING SUBSTANTIALLY INSOLUBLE IN SAID RESIN SYRUP, (4) DRYING THE RESULTING DOUBLY-IMPREGNATED BASE MATERIAL (5) ASSEMBLING A PLURALITY OF LAYERS OF SAID DRIED, DOUBLY-IMPREGNATED BASE MATERIAL IN SUPERIMPOSED RELATIONSHIP (6) LAMINATING THE RESULTING DRIED, DOUBLY-IMPREGNATED BASE MATERIAL, BY THE APPLICATION OF HEAT THEREBY CURING SAID PHENOLIC RESIN TO A SUBSTANTIALLY INSOLUBLE AND INFUSIBLE FORM, AND (7) CONTACTING THE RESULTING LAMINATED ARTICLE WITH WATER TO DISSOLVE A SUBSTANTIAL AMOUNT OF SAID LEACHABLE SOLID MATERIAL THEREFROM.
Claim 2
Dependent Claim
130 words
A PROCESS FOR THE PREPARATION OF AN OIL-ABSORPTIVE LAMINATED ARTICLE WHICH COMPRISES(1) IMPREGNATING A POROUS BASE MATERIAL WITH AN AQUEOUS SOLUTION OF A LEACHABLE SOLID MATERIAL, (2) DRYING THE RESULTING IMPREGNATED BASE MATERIAL, (3) IMPREGNATING THE RESULTING DRIED, LEACHABLE SOLID MATERIAL-IMPREGNATED BASE MATERIAL WITH A WATER-INSOLUBLE, ORGANIC SOLVENT-SOLUBLE THERMOSETTING PHENOLIC RESIN SYRUP, SAID LEACHABLE SOLID MATERIAL BEING SUBSTANTIALLY INSOLUBLE IN SAID RESIN SYRUP, (4) DRYING THE RESULTING DOUBLY-IMPREGNATED BASE MATERIAL (5) ASSEMBLING A PLURALITY OF LAYERS OF SAID DRIED, DOUBLY-IMPREGNATED BASE MATERIAL IN SUPERIMPOSED RELATIONSHIP (6) LAMINATING THE RESULTING DRIED, DOUBLY-IMPREGNATED BASE MATERIAL, BY THE APPLICATION OF HEAT THEREBY CURING SAID PHENOLIC RESIN TO A SUBSTANTIALLY INSOLUBLE AND INFUSIBLE FORM, AND (7) CONTACTING THE RESULTING LAMINATED ARTICLE WITH WATER TO DISSOLVE A SUBSTANTIAL AMOUNT OF SAID LEACHABLE SOLID MATERIAL THEREFROM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |