Patent US3553068A successfully refreshed from Google Patents.
US3553068A
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US
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Foamed cushioning material
Assignee: Phillips Petroleum Co
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Filing: 1967-10-11
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Granted: 1971-01-05
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Expires: 1987-10-11
Abstract
Abstract A CUSHIONING MATERIAL IS PRODUCED BY FORMING A SOFTENED SHEET OF FOAMED THERMOPLASTIC MATERIAL IN A FORMING PRESS TO PRODUCE HOLLOW, RAISED PROJECTIONS OF THE FOAMED MATERIAL ON THE SHEET.
Inventors
- 👤 Harold D Coale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:30
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/03; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/34; B29K; B29K2105/00; B29K2105/04; Y; Y10; Y10S; Y10S264/00; Y10S264/16; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24661; Y10T428/24669; Y10T428/31504; Y10T428/31855
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |