US3822157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced nonwoven fabric and method of manufacture
Assignee: International Paper Co
•
Filing: 1972-06-21
•
Granted: 1974-07-02
•
Expires: 1992-06-21
Abstract
Abstract A REINFORCE LAMINATED NONWOVEN FABRIC COMPRISING FIRST AND SECOND WEB PLIES OVERLAID WITH THEIR RESPECTIVE MACHINE DIRECTIONS DISPOSED AT AN ANGLE WITH RESPECT TO EACH OTHER AND WITH RESPECT TO THE LONGITUDINAL AND TRANSVERSE DIRECTIONS OF THE FABRIC. THE FIRST AND SECOND WEB PLIES ARE REINFORCE BY RESPECTIVE FIRST AND SECOND PLIES OF REINFORCING FILAMENTS, THE FILAMENTS OF EACH FILAMENT PLY BEING GENERALLY ALIGNED WITH THE MACHINE DIRECTION OF THE RESPECTIVE WEB PLY. THE PLIES ARE BONDED ONE TO ANOTHER.
Inventors
- 👤 C Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:10
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1005; Y10T156/1007
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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 |