Patent US2642626A successfully refreshed from Google Patents.
US2642626A
Expired / Lapsed
US
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Treatment of rubber stock
Assignee: Uniroyal Inc
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Filing: 1950-09-14
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Granted: 1953-06-23
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Expires: 1970-09-14
Abstract
No abstract record available.
Inventors
- 👤 Yurgen William James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:18
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/04; B29B13/045; B29K; B29K2007/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
THE METHOD WHICH COMPRISES FREEZING SHAPED PIECES OF UNVULCANIZED NATURAL RUBBER STOCK SO COMPOUNDED WITH FULLER AND SOFTENER AS TO HAVE A DUROMETER HARDENSS (SHORE SCALE "A") OF NOT OVER 55, SAID PIECES ALTHOUGH INITIALLY APPEARING FIRM EXHIBITING THE UNDESIRED PROPERTIES OF RAPID DEFORMATION AND OF RAPID CONSOLIDATION OF CONTACTING PIECES UPON STANDING UNDER ATMOSPHERE CONDITIONS, AT A TEMPERATURE OF NOT OVER -50* C., AND THAWING THE FROZEN STOCK, THE RESULTING THAWED STOCK MANIFESTING GREATLY IMPROVED DIMENSIONAL STABILITY, RESISTANCE TO DEFORMATION UPON STANDING UNDER ATMOSPHERIC CONDITIONS, AND RESISTANCE TO CONSOLIDATION BETWEEN CONTACTING SURFACES TO STOCK UPON SO STANDING AS COMPARED TO LIKE STOCK WHICH HAS NOT BEEN SO FROZEN AND THAWED.
Claim 2
Independent Claim
111 words
THE METHOD WHICH COMPRISES FREEZING SHAPED PIECES OF UNVULCANIZED NATURAL RUBBER STOCK SO COMPOUNDED WITH FULLER AND SOFTENER AS TO HAVE A DUROMETER HARDENSS (SHORE SCALE "A") OF NOT OVER 55, SAID PIECES ALTHOUGH INITIALLY APPEARING FIRM EXHIBITING THE UNDESIRED PROPERTIES OF RAPID DEFORMATION AND OF RAPID CONSOLIDATION OF CONTACTING PIECES UPON STANDING UNDER ATMOSPHERE CONDITIONS, AT A TEMPERATURE OF NOT OVER -50* C., AND THAWING THE FROZEN STOCK, THE RESULTING THAWED STOCK MANIFESTING GREATLY IMPROVED DIMENSIONAL STABILITY, RESISTANCE TO DEFORMATION UPON STANDING UNDER ATMOSPHERIC CONDITIONS, AND RESISTANCE TO CONSOLIDATION BETWEEN CONTACTING SURFACES TO STOCK UPON SO STANDING AS COMPARED TO LIKE STOCK WHICH HAS NOT BEEN SO FROZEN AND THAWED.
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) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |