Patent US3278955A successfully refreshed from Google Patents.
US3278955A
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Foam rubber article
Assignee: Day International Corp
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Filing: 1964-06-11
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Granted: 1966-10-18
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Abraham L Freedlander
- 👤 Trogdon Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:29
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/142; A47C27/146; B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/0461; B29C44/0469; B29C33/00; B29C33/0033; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A MOLDED UNITARY FOAM RUBBER ARTICLE HAVING FLAT RECTANGULAR UPPER AND LOWER FACES AND A UNIFORM THICKNESS, SAID ARTICLE COMPOSED OF PORTIONS OF DISSIMILAR DENSITIES AT RIGHT ANGLES TO SAID FACES, THE MATING SURFACES OF SAID PORTIONS BEING CONTIGUOUS ALONG GENERALLY SINUSODIAL PLANES.
Claim 2
Dependent Claim
43 words
A MOLDED UNITARY FOAM RUBBER ARTICLE HAVING FLAT RECTANGULAR UPPER AND LOWER FACES AND A UNIFORM THICKNESS, SAID ARTICLE COMPOSED OF PORTIONS OF DISSIMILAR DENSITIES AT RIGHT ANGLES TO SAID FACES, THE MATING SURFACES OF SAID PORTIONS BEING CONTIGUOUS ALONG GENERALLY SINUSODIAL PLANES.
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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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |