US3287748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam rubber product and method of manufacture
Assignee: Day International Corp
•
Filing: 1964-03-02
•
Granted: 1966-11-29
•
Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Trogdon Thomas
- 👤 Russell E Fultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/15; A47C27/142; A47C27/144; B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/0461; B29C44/0469; B29C33/00; B29C33/0033; B29K; B29K2021/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A MOLDED UNITARY FOAM RUBBER ARTICLE HAVING RECTANGULAR UPPER AND LOWER SURFACES AND A UNIFORM DEPTH, SAID ARTICLE HAVING SEGMENTS EXTENDING UPWARDLY FROM THE LOWER SURFACE WHOSE DENSITY IS DISSIMILAR FROM THE DENSITY OF THE REMAINING PORTION OF SAID ARTICLE, SAID SEGMENTS HAVING A MAXIMUM WIDTH AT THE LOWER SURFACE AND DECREASING IN WIDTH AS THEY EXTEND UPWARD.
Claim 2
Dependent Claim
58 words
A MOLDED UNITARY FOAM RUBBER ARTICLE HAVING RECTANGULAR UPPER AND LOWER SURFACES AND A UNIFORM DEPTH, SAID ARTICLE HAVING SEGMENTS EXTENDING UPWARDLY FROM THE LOWER SURFACE WHOSE DENSITY IS DISSIMILAR FROM THE DENSITY OF THE REMAINING PORTION OF SAID ARTICLE, SAID SEGMENTS HAVING A MAXIMUM WIDTH AT THE LOWER SURFACE AND DECREASING IN WIDTH AS THEY EXTEND UPWARD.
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |