US3676242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a nonwoven polymer laminate
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1969-08-13
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Granted: 1972-07-11
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Expires: 1989-08-13
Abstract
Abstract A LAMINAR STRUCTURE IS PRODUCED BY THERMALLY BONDING A NONWOVEN MAT OF MELT-BLOWN POLYOLEFIN FIBERS TO A POLYOLEFIN FILM. THE NONWOVEN MAT MAY BE THERMALLY BONDED TO THE FILM EITHER AS THE FILM OR THE NONWOVEN MAT IS PRODUCED OR BY PRESSING A PREFORMED NONWOVEN MAT OF POLYOLEFIN FIBERS ONTO A HOT POLYOLEFIN FILM.
Inventors
- 👤 James S Prentice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:33
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B27/32; B32B5/00; B32B5/02; B32B5/022; D; D04; D04H; D04H3/00; D04H3/08; D04H3/16; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2323/00; B32B2323/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089
Claims Analysis
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |