Patent US3553070A successfully refreshed from Google Patents.
US3553070A
Expired / Lapsed
US
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Open scrim-like network foam product
Assignee: Mobil Oil AS
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Filing: 1968-03-21
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Granted: 1971-01-05
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Expires: 1988-03-21
Abstract
Abstract THE PRESENT INVENTION RELATES TO TUBULAR THERMOPLASTIC FILM LAMINATES COMPRISING AT LEAST TWO LAYERS OF THERMOPLASTIC FILM, THE EXTERIOR LAYER BEING CHARACTERIZED IN THAT IT IS FORMED OF FOAMED THERMOPLASTIC AND THE INTERIOR LAYER BEING CHARACTERIZED BY BEING FORMED FROM NON-FOAM THERMOPLASTIC. THE NOVE LAMINAR STRUCTURES OF THE PRESENT INVENTION ARE FURTHER CHARACTERIZED BY HAVING BEEN FORMED BY THE CONTINUOUS EXTRUSION OF THE LAMINAR STRUCTURES THROUGH A SINGLE ANNULAR DIE ORIFICE.
Inventors
- 👤 Arnold F Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:19
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/22; B29C48/00; B29C48/16; B29C48/18; B29C48/185; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/249993; Y10T428/26; Y10T428/266; Y10T428/269; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
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References Cited (Backward Citations)
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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) | 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 |