US3553069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic polymer sheet
Assignee: Individual
•
Filing: 1967-10-03
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Granted: 1971-01-05
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Expires: 1987-10-03
Abstract
Abstract A SYNTHETIC SHEET INCLUDING AT LEAST TWO POLYMER MATERIALS FORMING SEPARATE PHASES INTERSPERSED WITH EACH OTHER IN THE SHEET, AT LEAST ONE OF SAID PHASES BEING IN THE FORM OF LAMELLAE TRAVERSING A SUBSTANTIAL PART OF THE THICK- NESS OF SAID SHEET AND BEING INTERCONNECTED BY FILAMENTS EMBEDDED IN INCISIONS FORMED IN THE EDGES THEREOF.
Inventors
- 👤 Ole-Bendt Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:37
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/16; B29C48/18; B29C48/21; B29C48/03; B29C48/09; B29C48/11; B29C48/07; B29C48/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24174; Y10T428/24182
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 |