US2984631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making latex foam rubber
Assignee: Day International Corp
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Filing: 1959-05-11
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Granted: 1961-05-16
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Talalay Leon
- 👤 George F Waters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:48
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; C08J2321/00; Y; Y10; Y10S; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD FOR MAKING LATEX FOAM RUBBER FROM AN ACID-COAGULABLE LATEX WHICH COMPRISES FROTHING SAID ACIDCOAGULABLE LATEX INTO A FLUID LATEX FOAM, COAGULATING SAID FLUID LATEX FOAM BY DIFFUSING A GASEOUS MIXTURE CONTAINING FROM 10 TO 70 PERCENT BY VOLUME OF COAGULATING ACID GAS, THE BALANCE OF SAID GASEOUS MIXTURE BEING NON-COAGULATING GAS, THROUGH SAID FLUID LATEX FOAM AT SUBSTANTIALLY ATMOSPHERIC PRESSURE, SAID GASEOUS MIXTUE BEING AT A TEMPERATURE BELOW 10*C. AND ABOVE A TEMPERATURE SUFFICIENTLY LOW TO FREEZE SAID FLUID LATEX FOAM, AND VULCANIZING THE COAGULATED LATEX FOAM.
Claim 2
Independent Claim
89 words
A METHOD FOR MAKING LATEX FOAM RUBBER FROM AN ACID-COAGULABLE LATEX WHICH COMPRISES FROTHING SAID ACIDCOAGULABLE LATEX INTO A FLUID LATEX FOAM, COAGULATING SAID FLUID LATEX FOAM BY DIFFUSING A GASEOUS MIXTURE CONTAINING FROM 10 TO 70 PERCENT BY VOLUME OF COAGULATING ACID GAS, THE BALANCE OF SAID GASEOUS MIXTURE BEING NON-COAGULATING GAS, THROUGH SAID FLUID LATEX FOAM AT SUBSTANTIALLY ATMOSPHERIC PRESSURE, SAID GASEOUS MIXTUE BEING AT A TEMPERATURE BELOW 10*C. AND ABOVE A TEMPERATURE SUFFICIENTLY LOW TO FREEZE SAID FLUID LATEX FOAM, AND VULCANIZING THE COAGULATED LATEX FOAM.
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) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |