US3682755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced nonwoven fabric
Assignee: International Paper Co
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Filing: 1970-01-29
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Granted: 1972-08-08
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Expires: 1990-01-29
Abstract
Abstract A REINFORCED LAMINATED NONWOVEN FABRIC COMPRISING FIRST AND SECOND WEB PILES 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 PILES ARE REINFORCED BY RESPECTIVE FIRST AND SECOND PILES OF FLUIDIZING MEDIUM, THE EXOTHERMIC-TYPE CRACKING GAS AND AN INERT GAS TO MAINTAIN THE TEMPERATURE OF THE REACTION ZONE BETWEEN ABOUT 1100*C. AND 1250*C.
Inventors
- 👤 Charles A Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:09
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/04; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/022; B32B5/04; B32B5/12; B32B7/00; B32B7/04; B32B2262/00; B32B2262/06; B32B2262/062; B32B2262/10; B32B2262/101; B32B2307/00; B32B2307/50; B32B2307/582; B32B2307/5825; B32B2555/00; B32B2555/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24083; Y10T428/24091; Y10T428/24099; Y10T428/2419; Y10T428/24207; Y10T428/24215; Y10T428/24223; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24463; Y10T428/249921; Y10T428/249924; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/627
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |