US3039913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced resin sheet
Assignee: Arthur D Little Inc
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Filing: 1959-05-04
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Granted: 1962-06-19
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Expires: 1979-05-04
Abstract
No abstract record available.
Inventors
- 👤 Richard E Merrill
- 👤 Raphael Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:14
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/046; H; H01; H01B; H01B3/00; H01B3/18; H01B3/48; H01B3/485; C08J2333/00; C08J2333/04; C08J2333/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A PROCESS FOR FORMING A DENSE ACRYLIC-BASE RESIN SHEET REINFORCED BY ACRYLIC RESIN FIBERS, COMPRISING THE STEPS OF FORMING AN AQUEOUS STOCK OF SAID FIBERS, SHEETING OUT SAID STOCK TO FORM A WEB, REDUCING THE WATER CONTENT IN SAID WEB TO FROM ABOUT 25 TO 35% BY WEIGHT, INCORPORATING INTO THE RESULTING WET FIBER SHEET A QUANTITY OF ACRYLICBASE RESIN RANGING FROM ABOUT 50 TO 90% SOLIDS BY WEIGHT OF TOTAL SOLIDS, SAID RESIN HAVING AN ACRYLIC CONTENT OF AT LEAST 50%, REMOVING SUBSTANTIALLY ALL OF THE WATER REMAINING IN THE RESULTING FIBER-REINFORCED RESIN AND DENSIFYING THE RESULTING DRY RESIN SHEET UNDER PRESSURE AT A TEMPERATURE OF ABOUT 325*F. FOR A PERIOD FROM ABOUT 30 SECOND TO ABOUT TWO MINUTES, SAID PRESSURE BEING APPLIED AT FROM ABOUT 600 TO ABOUT 1050 P.S.I. MOMENTARILY AND THEN FROM ABOUT 50 TO ABOUT 100 P.S.I. FOR THE REMAINING PORTION OF SAID PERIOD.
Claim 2
Dependent Claim
149 words
A PROCESS FOR FORMING A DENSE ACRYLIC-BASE RESIN SHEET REINFORCED BY ACRYLIC RESIN FIBERS, COMPRISING THE STEPS OF FORMING AN AQUEOUS STOCK OF SAID FIBERS, SHEETING OUT SAID STOCK TO FORM A WEB, REDUCING THE WATER CONTENT IN SAID WEB TO FROM ABOUT 25 TO 35% BY WEIGHT, INCORPORATING INTO THE RESULTING WET FIBER SHEET A QUANTITY OF ACRYLICBASE RESIN RANGING FROM ABOUT 50 TO 90% SOLIDS BY WEIGHT OF TOTAL SOLIDS, SAID RESIN HAVING AN ACRYLIC CONTENT OF AT LEAST 50%, REMOVING SUBSTANTIALLY ALL OF THE WATER REMAINING IN THE RESULTING FIBER-REINFORCED RESIN AND DENSIFYING THE RESULTING DRY RESIN SHEET UNDER PRESSURE AT A TEMPERATURE OF ABOUT 325*F. FOR A PERIOD FROM ABOUT 30 SECOND TO ABOUT TWO MINUTES, SAID PRESSURE BEING APPLIED AT FROM ABOUT 600 TO ABOUT 1050 P.S.I. MOMENTARILY AND THEN FROM ABOUT 50 TO ABOUT 100 P.S.I. FOR THE REMAINING PORTION OF SAID PERIOD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |