Patent UST100902I4 successfully refreshed from Google Patents.
UST100902I4
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uses for microfiber-based webs
Assignee: 3M Co
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Filing: 1980-12-29
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Granted: 1981-08-04
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Expires: 2000-12-29
Abstract
Abstract Microfiber webs and composite webs comprising blends of microfibers and crimped bulking fibers have a variety of uses, including use as thermal insulation for garments as well as various structures such as buildings, tents, refrigerator cabinets, or window shades; acoustic insulation; light weight fillers; various structural members, such as battery separators; filters; and applicators, cloths and wipes. For these and other uses the webs may be combined with other articles such as films or fabrics or other kinds of insulating or lofty webs.
Inventors
- 👤 Edward R. Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:25
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; Y; Y10; Y10S; Y10S428/00; Y10S428/903
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) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |