US2542593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making circular bodies of laminated plastic
Assignee: FORMICA Co
•
Filing: 1947-04-11
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Granted: 1951-02-20
•
Expires: 1967-04-11
Abstract
No abstract record available.
Inventors
- 👤 Sullivan Henry Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:13
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C53/00; B29C53/02; B29C53/12; Y; Y10; Y10S; Y10S277/00; Y10S277/924; Y10S277/935; Y10S277/936; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
THE METHOD OF MAKING CIRCULAR BODIES OF LAMINATED INSULTING MATERIAL WHICH COMPRISES: SUPERPOSING SHEETS OF FABRIC, IMPREGNATED WITH A PHENOLIC CONDENSATION PRODUCT, SO THAT THE WARP AND WOOF THREADS IN EACH SHEET ARE ARRANGED SUBSTANTIALLY IN PARALLEL OR PERPENDICUALR RELATION TO THE DIRECTION OF THE WARP AND WOOF THREADS IN THE OTHER SHEETS; CONSOLIDATING THE ASSEMBLY UNDER HEAT AND PRESSURE TO THE C-STAGE; CUTTING THE ASSEMBLY INTO PARALLEL STRIPS SO THAT THE WARP AND WOOF THREADS IN THE ASSEMBLY EACH EXTEND IN FROM THE EDGE PORTION AT AN ANGLE OF ABOUT FORTY-FIVE DEGREES; QUICKLY HEATING THE STRIP TO A TEMPERATURE OF ABOUT 500* F. AND WRAPPING IT EDGEWISE AROUND A MANDREL; AND COOLING TO ROOM TEMPERATURE.
Claim 2
Independent Claim
116 words
THE METHOD OF MAKING CIRCULAR BODIES OF LAMINATED INSULTING MATERIAL WHICH COMPRISES: SUPERPOSING SHEETS OF FABRIC, IMPREGNATED WITH A PHENOLIC CONDENSATION PRODUCT, SO THAT THE WARP AND WOOF THREADS IN EACH SHEET ARE ARRANGED SUBSTANTIALLY IN PARALLEL OR PERPENDICUALR RELATION TO THE DIRECTION OF THE WARP AND WOOF THREADS IN THE OTHER SHEETS; CONSOLIDATING THE ASSEMBLY UNDER HEAT AND PRESSURE TO THE C-STAGE; CUTTING THE ASSEMBLY INTO PARALLEL STRIPS SO THAT THE WARP AND WOOF THREADS IN THE ASSEMBLY EACH EXTEND IN FROM THE EDGE PORTION AT AN ANGLE OF ABOUT FORTY-FIVE DEGREES; QUICKLY HEATING THE STRIP TO A TEMPERATURE OF ABOUT 500* F. AND WRAPPING IT EDGEWISE AROUND A MANDREL; AND COOLING TO ROOM TEMPERATURE.
Claim 3
Dependent Claim
46 words
A CIRCULAR BODY OF LAMINATED SHEETS OF FABRIC IMPREGNATED WITH A PHENOL CONDENSATION PRODUCT AND CONSOLIDATED TO THE C-STAGE, BOTH THE WARP AND WOOF THREADS IN THE FABRICS BEING ANGULARLY DISPOSED TO THE CIRCUMFERENCE OF THE BODY SO AS TO AFFORD A SUBSTANTIALLY UNIFORM OUTER SURFACE.
Claim 4
Dependent Claim
46 words
A CIRCULAR BODY OF LAMINATED SHEETS OF FABRIC IMPREGNATED WITH A PHENOL CONDENSATION PRODUCT AND CONSOLIDATED TO THE C-STAGE, BOTH THE WARP AND WOOF THREADS IN THE FABRICS BEING ANGULARLY DISPOSED TO THE CIRCUMFERENCE OF THE BODY SO AS TO AFFORD A SUBSTANTIALLY UNIFORM OUTER 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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |