US3554854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-woven fabric
Assignee: Carl Freudenberg KG
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Filing: 1969-02-07
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Granted: 1971-01-12
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Expires: 1989-02-07
Abstract
Abstract A NON-WOVEN FABRIC COMPRISING A MULTIPLICITY OF GROUPS OF INDIVIDUAL CONTINUOUS FILAMENTS, SAID FILAMENTS BEING IN GENERALLY PARALLEL ALIGNMENT WITHIN THE GROUPS AND PARTIALLY FUSED TO EACH OTHER WITHIN THE GROUPS, SAID GROUPS BEING BONDED TOGETHER PREDOMINANTLY AT THE CROSSING POINTS AND BEING SUBSTANTIALLY UNIFORMLY RANDOMLY DISORIENTED WITH RESPECT TO THE OTHER GROUPS.
Inventors
- 👤 Ludwig Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:54
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/03; A; A24; A24D; A24D3/00; A24D3/02; A24D3/0229; A24D3/0237; D01; D01D; D01D5/00; D01D5/08; D01D5/098; D01D5/0985; D01D5/253; D04H3/08; D04H3/16; Y; Y10; Y10S; Y10S264/00; Y10S264/75; Y10T; Y10T442/00; Y10T442/60; Y10T442/643
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |