Patent US4475902A successfully refreshed from Google Patents.
Patent US2575259A successfully refreshed from Google Patents.
US2575259A
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Method of making foamed sponge rubber articles
Assignee: Goodrich Corp
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Filing: 1948-11-17
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Granted: 1951-11-13
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Expires: 1968-11-17
Abstract
No abstract record available.
Inventors
- 👤 Alvon R Cox
- 👤 Frank E Trockle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:22
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5627; B29C44/5636; B29C2793/00; B29C2793/009; B29C35/00; B29C35/02; B29K; B29K2021/00; Y; Y10; Y10S; Y10S264/00; Y10S264/46; Y10S521/00; Y10S521/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF SHAPING A BODY OF A GELLED VULCANIZABLE RUBBER LATEX FOAM WHICH COMPRISES MAINTAINING SAID BODY AT A TEMPERATURE OF 140*220* F. FOR A PERIOD OF 1 TO 5 MINUTES, APPLYING COMPRESSIVE FORCE TO A LOCALIZED ZONE OF SAID BODY TO COLLAPSE AT LEAST PARTIALLY THE FOAM STRUCTURE IN SAID ZONE, REMOVING SAID COMPRESSIVE FORCE, AND THEREAFTER VULCANIZING SAID BODY WITH SAID ZONE IN SAID COLLAPSED CONDITIONS AND FREE FROM CONFINEMENT.
Claim 2
Independent Claim
73 words
THE METHOD OF SHAPING A BODY OF A GELLED VULCANIZABLE RUBBER LATEX FOAM WHICH COMPRISES MAINTAINING SAID BODY AT A TEMPERATURE OF 140*220* F. FOR A PERIOD OF 1 TO 5 MINUTES, APPLYING COMPRESSIVE FORCE TO A LOCALIZED ZONE OF SAID BODY TO COLLAPSE AT LEAST PARTIALLY THE FOAM STRUCTURE IN SAID ZONE, REMOVING SAID COMPRESSIVE FORCE, AND THEREAFTER VULCANIZING SAID BODY WITH SAID ZONE IN SAID COLLAPSED CONDITIONS AND FREE FROM CONFINEMENT.
References Cited (Backward Citations)
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US2200262A
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US2216785A
Cited
US2161308A
Cited
US2271058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |