US3778333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micropleated composite fibrous product
Assignee: Individual
•
Filing: 1971-05-27
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Granted: 1973-12-11
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Expires: 1991-05-27
Abstract
Abstract FILAMENTS, FIBERS AND FIBRE-LIKE STRUCTURE CONSISTING OF THIN RIBBON-LIKE LAYERS FORMED OF DIFFERENT POLYMERIC MATERIALS AND TRANSVERSELY PLEATED WITH THE SPACING BETWEEN ADJACENT PLEATS BEING UP TO ABOUT 100U. TO MAKE AN INTERMEDIATE PRODUCT, A SANDWICH-LIKE STRUCTURE HAVING MICROSCOPICALLY THIN LAYERS IS SIMULTANEOUSLY COMPRESSED IN ONE DIRECTION IN THE PLANE OF THE LAYERS AND EXPANDED PERPENDICULARLY THERETO, ALSO IN THE PLANE OF THE LAYERS UNDER CONDITIONS AT WHICH THE MATERIALS OF THE LAYERS ARE IN STATES OF DIFFERENT FLUIDITY. THE INTERMEDIATE PRODUCT IS SUBJECTED TO SPLITTING ACTION TO FORM THE FINAL PRODUCT.
Inventors
- 👤 O Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:03
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/423; B; B29; B29C; B29C48/00; B29C48/022; B29C48/03; B29C48/07; B29C48/08; B29C48/12; B29C48/13; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/32; B29C48/33; B29C67/00; B29C67/0003; B29C70/00; B29C70/02; B29C70/021; B29C70/025; B29C70/04; B29C70/06; B29C70/10; B29C70/12; B29C70/14; B32; B32B; B32B27/00; B29C2793/00; B29C2793/0063; B29C48/001; B29C48/0018; B29C48/0022; B29C48/05; B29C48/22; B29K; B29K2025/00; B29K2105/00; B29K2105/04; B29K2105/06; B29K2105/16; B29K2223/00; B29K2223/04; B29K2223/06; B29K2995/00; B29K2995/0037; B29K2995/0041; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24686; Y10T428/29; Y10T428/2904; Y10T428/2913; Y10T428/2922
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |