US2595964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of vulcanizing sponge rubber
Assignee: Uniroyal Inc
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Filing: 1949-07-08
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Granted: 1952-05-06
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Expires: 1969-07-08
Abstract
No abstract record available.
Inventors
- 👤 Dale E Lovell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:48
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/3415; B29C44/3426; B29C44/343; B29C33/00; B29C33/0033; B29C35/00; B29C35/02; B29C35/04; Y; Y10; Y10S; Y10S264/00; Y10S264/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE METHOD OF VULCANIZING FROTHED LATEX RUBBER HAVING AIR CELLS INTO A PREDETERMINED SHAPE, WHICH COMPRISES CONFINING THE FROTHED RUBBER MASS SUFFICIENTLY TO GIVE IT TO THE DESIRED MOLDED SHAPE, PERMITTING THE MASS TO SET TO A POROUS CELLULAR CONDITION, THEN INTRODUCING STEAM INTO THE INTERIOR OF THE SET OPEN CELL MASS SO THAT IT WILL PASS RAPIDLY THROUGH THE PORES TOWARDS THE OUTER WALLS OF THE MASS, TO THEREBY HEAT QUICKLY THE ENTIRE FROTHED MASS AND VULCANIZE IT.
Claim 2
Independent Claim
79 words
THE METHOD OF VULCANIZING FROTHED LATEX RUBBER HAVING AIR CELLS INTO A PREDETERMINED SHAPE, WHICH COMPRISES CONFINING THE FROTHED RUBBER MASS SUFFICIENTLY TO GIVE IT TO THE DESIRED MOLDED SHAPE, PERMITTING THE MASS TO SET TO A POROUS CELLULAR CONDITION, THEN INTRODUCING STEAM INTO THE INTERIOR OF THE SET OPEN CELL MASS SO THAT IT WILL PASS RAPIDLY THROUGH THE PORES TOWARDS THE OUTER WALLS OF THE MASS, TO THEREBY HEAT QUICKLY THE ENTIRE FROTHED MASS AND VULCANIZE IT.
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) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |