Patent US2548974A successfully refreshed from Google Patents.
US2548974A
Expired / Lapsed
US
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Method of making rubbery articles
Assignee: —
•
Filing: —
•
Granted: 1951-04-17
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Expires: 1968-04-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:05
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29C41/08; C; C08; C08J; C08J5/00; C08J5/02; B29K; B29K2105/00; B29K2105/0058; B29K2105/0064; C08J2321/00; Y; Y10; Y10S; Y10S526/00; Y10S526/917; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/936
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
IN THE METHOD OF MAKING A RUBBERY ARTICLE DEPOSITED ON A SUITABLY SHAPED DEPOSITION FORM DIRECTLY FROM ON AQUEOUS DISPERSION OF VULCANIZABLE RUBBER MATERIAL BY MEANS OF A COAGULANT THEREFOR, THE STEPS WHICH COMPRISE EXPOSING THE OUTER FACE OF SAID ARTICLE TO WATER VAPOR AT 180*-250* F. AT SUBSTANTIALLY ATMOSPHERIC PRESSURE TO ACCUMULATE AN AQUEOUS LIQUID BETWEEN SAID ARTICLE AND SAID FORM AND TO VULCANIZE SAID ARTICLE, AND SIMULTANEOUSLY DRAINING SAID LIQUID FROM BETWEEN SAID ARTICLE AND SAID FROM.
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) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |