US3193435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated articles having deeply embossed surfaces and method of making same
Assignee: Freeman Chemical Corp
•
Filing: 1961-08-16
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Granted: 1965-07-06
•
Expires: 1981-08-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:29
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5618; B29C44/02; B29C44/10; B29C44/569; B32; B32B; B32B27/00; B29C59/00; B29L; B29L2031/00; B29L2031/712; B29L2031/7176; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/24595; Y10T428/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A LAMINATED ARTICLE COMPRISING A STRUCTURAL BACKING MEMBER AND AT LEAST ONE LAYER OF FLEXIBLE FOAMED POLYURETHANE HAVING OPEN CONNECTED CELLS, SAID POLYURETHANE SHEET BEING IMPREGNATED WITH A NON-FOAMING THERMOSET RESINOUS MATERIAL WHICH HAS BEEN CURED TO A HARDENED THERMOSET CONDITION WHILE THE SAID FOAMED POLYURETHANE SHEET WAS MAINTAINED AT LEAST IN PART UNDER COMPRESSION BETWEEN THE SAID BACKING MEMBER AND AN EMBOSSED MOLDING ELEMENT WHEREBY THE RESULTING LAMINATED ARTICLE HAS AN EMBOSSED SURFACE CORRESPONDING TO THAT OF THE SAID MOLDING ELEMENT, SAID SURFACE HAVING THE SAID FOAMED POLYURETHANE IN ABUTMENT THEREWITH OVER ITS ENTIRE AREA, AND THE SAID FOAMED POLYURETHANE IS SUBSTANTIALLY FLATTENED FROM ITS INITIAL UNCOMPRESSED THICKNESS, THE AMOUNT OF SUCH FLATTENING CORRESPONDING WITH THE EMBOSSMENTS OF THE SAID EMBOSSED SURFACE.
Claim 2
Dependent Claim
123 words
A LAMINATED ARTICLE COMPRISING A STRUCTURAL BACKING MEMBER AND AT LEAST ONE LAYER OF FLEXIBLE FOAMED POLYURETHANE HAVING OPEN CONNECTED CELLS, SAID POLYURETHANE SHEET BEING IMPREGNATED WITH A NON-FOAMING THERMOSET RESINOUS MATERIAL WHICH HAS BEEN CURED TO A HARDENED THERMOSET CONDITION WHILE THE SAID FOAMED POLYURETHANE SHEET WAS MAINTAINED AT LEAST IN PART UNDER COMPRESSION BETWEEN THE SAID BACKING MEMBER AND AN EMBOSSED MOLDING ELEMENT WHEREBY THE RESULTING LAMINATED ARTICLE HAS AN EMBOSSED SURFACE CORRESPONDING TO THAT OF THE SAID MOLDING ELEMENT, SAID SURFACE HAVING THE SAID FOAMED POLYURETHANE IN ABUTMENT THEREWITH OVER ITS ENTIRE AREA, AND THE SAID FOAMED POLYURETHANE IS SUBSTANTIALLY FLATTENED FROM ITS INITIAL UNCOMPRESSED THICKNESS, THE AMOUNT OF SUCH FLATTENING CORRESPONDING WITH THE EMBOSSMENTS OF THE SAID EMBOSSED SURFACE.
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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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |