US2631955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of resin bonded fibrous articles
Assignee: MARCO CHEMICALS Inc
•
Filing: 1944-03-16
•
Granted: 1953-03-17
•
Expires: 1964-03-16
Abstract
No abstract record available.
Inventors
- 👤 Irving E Muskat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:03
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; Y; Y10; Y10S; Y10S264/00; Y10S264/53; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T156/1036; Y10T156/1038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD WHICH COMPRISES ESTABLISHING A LAMINATED FIBROUS SHEET IMPREGNATED WITH A LIQUID POLYMERIZABLE MATERIAL BETWEEN A PAIR OF NONPOROUS FLEXIBLE COVER SHEETS HAVING A THICKNESS NOT OVER ABOUT 0.05 INCH, PRESSING THE SHEETS TOGETHER TO SQUEEZE OUT EXCESS POLYMERIZABLE LIQUID AND SWEEP ENTRAPPED AIR TO A POINT ADJACENT THE EDGES OF THE FIBROUS SHEET AND TO FORCE THE COVER SHEETS INTO CLOSE CONTACT WITH THE FIBROUS SHEET WHEREBY SUBSTANTIAL INTAKE OF AIR BETWEEN THE SHEET, IS PREVENTED AND POLYMERIZING THE FIBROUS SHEET.
Claim 2
Independent Claim
83 words
A METHOD WHICH COMPRISES ESTABLISHING A LAMINATED FIBROUS SHEET IMPREGNATED WITH A LIQUID POLYMERIZABLE MATERIAL BETWEEN A PAIR OF NONPOROUS FLEXIBLE COVER SHEETS HAVING A THICKNESS NOT OVER ABOUT 0.05 INCH, PRESSING THE SHEETS TOGETHER TO SQUEEZE OUT EXCESS POLYMERIZABLE LIQUID AND SWEEP ENTRAPPED AIR TO A POINT ADJACENT THE EDGES OF THE FIBROUS SHEET AND TO FORCE THE COVER SHEETS INTO CLOSE CONTACT WITH THE FIBROUS SHEET WHEREBY SUBSTANTIAL INTAKE OF AIR BETWEEN THE SHEET, IS PREVENTED AND POLYMERIZING THE FIBROUS SHEET.
References Cited (Backward Citations)
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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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |