US3788922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a laminated fibro-filamentary or film structure which is partly delaminated
Assignee: Individual
•
Filing: 1971-07-21
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Granted: 1974-01-29
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Expires: 1991-07-21
Abstract
Abstract METHOD OF PRODUCING FIBROUS OR SHEET STRUCTURE COMPRISING MELT COEXTRUDING A LAMINATED STRUCTURE COMPRISING AN ASSEMBLY OF TWO OR MORE LAYERS FROM POLYMERIC MATERIAL LAMINATED TOGETHER IN INTIMATE ADHERENCE WITH ONE ANOTHER AND SIMULTANEOUSLY OR SUBSEQUENTLY SO TREATING THE ASSEMBLY AS TO PRODUCE A REGULAR PATTERN OF AREAS OF STRONG BONDING SEPARATED BY AREAS OF WEAK OR NO BONDING BETWEEN THE LAYERS OF THE ASSEMBLY.
Inventors
- 👤 O Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:58
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/0076; B29; B29C; B29C65/00; B29C65/02; B29C66/00; B29C66/004; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/13; B29C66/131; B29C66/1312; B29C66/40; B29C66/41; B29C66/43; B29C66/438; B31; B31D; B31D3/00; B31D3/02; B32B3/00; B32B3/26; B32B3/28; B32B7/00; B32B7/02; B32B7/022; B32B7/04; B32B7/05; D; D01; D01D; D01D5/00; D01D5/42; D01D5/423; B29C65/14; B29C66/70; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B32B2305/00; B32B2305/38; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T156/1052; Y10T156/1059; Y10T156/11; Y10T156/1168; Y10T156/1179; Y10T156/1184; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24355; Y10T428/24446; Y10T428/24479; Y10T428/24562; Y10T428/24612; Y10T428/24628; Y10T428/24661; Y10T428/24669; Y10T428/24686; Y10T428/24802; Y10T428/24826; Y10T428/24942; Y10T428/26; Y10T428/269; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2929
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |