Patent US3136999A successfully refreshed from Google Patents.
US3574809A
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Method for making oriented webs possessing projecting unoriented sections
Assignee: FMC Corp
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Filing: 1968-12-17
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Granted: 1971-04-13
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Expires: 1988-12-17
Abstract
Abstract MANUFACTURE OF AN UNBROKEN POLYMERIC WEB OR FILM HAVING PROJECTING UNORIENTED SECTIONS SURROUNDED BY A PREDETERMINED PATTERN OF UNIAXIALLY AND BIAXIALLY ORIENTED REGIONS IS DISCLOSED WHEREIN THE PATTERNED WEB IS PRODUCED BY A LONGITUDINAL STRETCHING OF THE SAID WEB AT LONGITUDINALLY SPACED INTERVALS FOLLOWED BY A TRANSVERSE STRETCH OF THE RESULTING STRUCTURE.
Inventors
- 👤 Theodore H Fairbanks
- 👤 Robert F Gillespie
- 👤 Dorsey C Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/04; B29C48/00; B29C48/001; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/14; B29C55/143; B29C48/0011; B29C48/0018; B29C48/002; B29C48/03; B29C48/07; B29C48/08; B29C48/13; B29C48/16; B29C48/18; B29C48/21; Y; Y10; Y10S; Y10S428/00; Y10S428/91
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |