US2758980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a cellular elastomeric article
Assignee: Goodrich Corp
•
Filing: 1952-08-16
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Granted: 1956-08-14
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Expires: 1972-08-16
Abstract
No abstract record available.
Inventors
- 👤 Talalay Leon
- 👤 Joseph A Talalay
- 👤 Thomas F Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:13
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; C08J9/04; C08J9/06; C08J9/065; C08J2321/00; Y; Y10; Y10S; Y10S264/00; Y10S264/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE METHOD FOR MAKING A CELLULAR RUBBER ARTICLE WHICH COMPRISES DISPERSING INTO A RUBBER LATEX HAVING A PH ABOVE ABOUT 10 A SUBSTANTIALLY STABLE AQUEOUS SOLUTION OF SODIUM BOROHYDRIDE, SAID SOLUTION BEING PREPARED BY DISSOLVING SODIUM BOROHYDRIDE IN COLD WATER HAVING A PH OF AT LEAST 10, AND SODIUM SILICO FLUORIDE WHICH UPON HYDROLYSIS FORMS AN ACID PRODUCT IN SAID LATEX INSUFFICIENT IN AMOUNT TO COAGULATE SAID LATEX, SAID ACID PRODUCT REDUCING THE PH OF SAID LATEX SUFFICIENTLY TO CAUSE SAID SODIUM BOROHYDRIDE TO REACT WITH THE WATER IN SAID LATEX LIBERATING HYDROGEN IN SAID LATEX AND CAUSING SAID LATEX TO FOAM.
Claim 2
Independent Claim
102 words
THE METHOD FOR MAKING A CELLULAR RUBBER ARTICLE WHICH COMPRISES DISPERSING INTO A RUBBER LATEX HAVING A PH ABOVE ABOUT 10 A SUBSTANTIALLY STABLE AQUEOUS SOLUTION OF SODIUM BOROHYDRIDE, SAID SOLUTION BEING PREPARED BY DISSOLVING SODIUM BOROHYDRIDE IN COLD WATER HAVING A PH OF AT LEAST 10, AND SODIUM SILICO FLUORIDE WHICH UPON HYDROLYSIS FORMS AN ACID PRODUCT IN SAID LATEX INSUFFICIENT IN AMOUNT TO COAGULATE SAID LATEX, SAID ACID PRODUCT REDUCING THE PH OF SAID LATEX SUFFICIENTLY TO CAUSE SAID SODIUM BOROHYDRIDE TO REACT WITH THE WATER IN SAID LATEX LIBERATING HYDROGEN IN SAID LATEX AND CAUSING SAID LATEX TO FOAM.
References Cited (Backward Citations)
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US2226517A
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US2341509A
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Cited
US2513997A
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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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |