Patent GB190912976A successfully refreshed from Google Patents.
US2927876A
Expired / Lapsed
US
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Article comprising a cellular core and sheath
Assignee: Bayer AG
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Filing: 1955-07-26
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Granted: 1960-03-08
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Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 Hoppe Peter
- 👤 Paffrath Hans-Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14; B29C44/04; B29C70/00; B29C70/58; Y; Y10; Y10S; Y10S2/00; Y10S2/09; Y10S297/00; Y10S297/01; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/24521; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/249981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A SHAPED ARTICLE OF PLASTIC FOAM HAVING IMPROVED BREATHING CHARACTERISTICS COMPRISING A CORE OF POROUS PLASTIC FOAM AND A SURFACE SKIN OF PLASTIC FOAM HAVING PORES EXTENDING THERETHROUGH, SAID CORE HAVING PROTUBERANCES THAT EXTEND INTO SOME OF THE PORES OF THE SKIN, THEREBY LOCKING THE SKIN TO THE CORE.
Claim 2
Dependent Claim
49 words
A SHAPED ARTICLE OF PLASTIC FOAM HAVING IMPROVED BREATHING CHARACTERISTICS COMPRISING A CORE OF POROUS PLASTIC FOAM AND A SURFACE SKIN OF PLASTIC FOAM HAVING PORES EXTENDING THERETHROUGH, SAID CORE HAVING PROTUBERANCES THAT EXTEND INTO SOME OF THE PORES OF THE SKIN, THEREBY LOCKING THE SKIN TO THE CORE.
References Cited (Backward Citations)
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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) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |