US3558393A
Expired / Lapsed
US
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Process for the preparation of padding material
Assignee: Rhodiaceta SA
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Filing: 1967-11-13
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Granted: 1971-01-26
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Expires: 1987-11-13
Abstract
Abstract THE INVENTION RELATES TO PADDING MATERIAL FOR UPHOLSTERY AND THE LIKE, AND A METHOD OF MANUFACTURE THEREOF IN WHICH A LARGE NUMBER OF CONTINUOUS, PREFERABLY CRIMPED, CHEMICAL FILAMENTS ARE ARRANGED SIDE-BY-SIDE TO FORM A FLAT SHEET. THE SHEET IS FORMED INTO DEEP UNDULATIONS, E.G. BY PASSING BETWEEN ROLLERS ROTATING AT DIFFERENT PERIPHERAL SPEEDS AND THE UNDULATIONS ARE SPRAYED WITH A RESIN WHICH IS THEN HARDENED TO FIX THE UNDULATIONS IN POSITIONS.
Inventors
- 👤 Robert Bolliand
- 👤 Claude Saligny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:58
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/18; D04; D04H; D04H3/00; D04H3/005; D04H3/007; D04H3/009; D04H3/011; D04H3/08; D04H3/12; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/1018; Y10T156/1025; Y10T156/1039
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |