US3822174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imitation leather material
Assignee: KUFNER TEXTILWERKE KG
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Filing: 1972-03-20
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Granted: 1974-07-02
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Expires: 1992-03-20
Abstract
Abstract THIS INVENTION PROVIDES AN IMITATION LEATHER HAVING IMPROVED POROSITY AND CAPACITY TO ABSORB MOISTURE. THE MATERIAL OF THIS INVENTION COMPRISES AT LEAST ONE LAYER OF A TEXTILE SHEET MATERIAL EACH SANDWICH BETWEEN TWO LAYERS OF FIBROUS FLOCK PERMEATED WITH A BINDING AGENT, THE TEXTILE SHEET MATERIAL ALSO BEING PERMEATED BY A BINDING AGENT AND THE FLOCK LAYERS BEING HELD TOGETHER BU Y A FLOCK BINDER MATERIAL.
Inventors
- 👤 J Hefele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:38
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/0002; D06N3/004; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943; Y10T428/24; Y10T428/24355; Y10T428/24438; Y10T428/29; Y10T428/2904; Y10T428/2907; Y10T442/00; Y10T442/20; Y10T442/2139; Y10T442/2484
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |