US3028610A
Expired / Lapsed
US
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Foam rubber cushioning
Assignee: Goodrich Corp
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Filing: 1959-06-09
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Granted: 1962-04-10
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Expires: 1979-06-09
Abstract
Abstract Foam rubber from which are cut cushions of the desired contour has uniformly spaced corings 18, 19 extending inwardly from broadside top and bottom faces 16, 17 part way through the thickness of the rubber, the corings having a maximum diameter between 1/8 and inch and the area of the perforations being between 2 and 20%. Specifications 619,619, <PICT:0882956/IV (a)/1> 668,945 and U.S. Specification 2,310,830 are referred to.
Inventors
- 👤 Talalay Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:42
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; A47C27/00; A47C27/14; A47C27/142; A47C27/144; A47C27/146; B; B29; B29C; B29C44/00; B29C44/34; B29C44/58; B29C44/583; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/751; Y; Y10; Y10S; Y10S264/00; Y10S264/11; Y10S297/00; Y10S297/01; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 0
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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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |