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US3575764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding fabrics
Assignee: Hercules LLC
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Filing: 1969-03-03
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Granted: 1971-04-20
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Expires: 1989-03-03
Abstract
Abstract AIR-PERVIOUS FABRIC STRUCTURES CAN BE PREPARED BY BONDING THE FIBERS IN NONWOVENS OR BONDING FABRICS TO FORM LAMINATES USING AS THE BONDING MATERIAL ORIENTED THERMOPLASTIC FILMS HAVING AN OVERALL MELT EMBOSSED PATTERN.
Inventors
- 👤 Gerald A Mcfarren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:36
CPC Classifications
B; B32; B32B; B32B27/00; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/60; D06; D06M; D06M17/00; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24802; Y10T428/24826; Y10T428/26; Y10T442/00; Y10T442/60; Y10T442/674; Y10T442/678
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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |