Patent US3598692A successfully refreshed from Google Patents.
US3598692A
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US
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Three layer,vinyl chloride polymer,energy-absorbing structure
Assignee: Cabot Corp
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Filing: 1967-04-13
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Granted: 1971-08-10
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Expires: 1987-04-13
Abstract
Abstract ENERGY-ABSORBING MATERIAL IS PROVIDED FROM A NUMBER OF LAYERS OF DIFFERENT ENERGY-ABSORBING PLASTIC FORMULATIONS AND AN INERT DILUENT. A NUMBER OF THE LAYERS HAVE REBOUND MINIMA AT DIFFERENT AND RELATIVELY NARROW TEMPERATURE RANGES. THE COMPOSITE MATERIAL HAS A REBOUND MINIMUM COVERING A SUBSTANTIALLY WIDER TEMPERATURE RANGE THAN ANY INDIVIDUAL LAYER.
Inventors
- 👤 Ross Gardner Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
CPC Classifications
B; B32; B32B; B32B27/00; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B2001/8457; E04B2001/8461; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |