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US4510193B1
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US4510193B1 - - Google Patents
Assignee: —
•
Filing: 1983-05-20
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Granted: 1989-10-24
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Expires: 2003-05-20
Abstract
Abstract A filter sheet material consisting of an air-permeable, pliable, especially textile support which is covered only partially with a uniformly distributed adhesive on which adsorber particles, especially active carbon beads, are fixed and the use of such filter materials containing active carbon as adsorbent for protective suits.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:33
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/08; B01D39/083; A; A62; A62D; A62D5/00; B01D46/00; B01D46/10; C; C01; C01B; C01B32/00; C01B32/30; C01B32/312; C01B32/318; C01B32/33; C01B32/336; C01B32/354; C01B32/384; B01D2239/00; B01D2239/04; B01D2239/0407; B01D2239/0457; B01D2239/0464; B01D2239/0471; B01D2239/0478; B01D2239/0492; B01D2239/06; B01D2239/065; B01D2239/12; B01D2239/1241; B01D2239/1291; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/2481; Y10T428/24826; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/27; Y10T428/273
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) | 1992-10-23 | 1993-04-24 | 1993-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-23 | 1997-04-24 | 1997-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-23 | 2001-04-24 | 2001-10-24 | $7700.00 | Window Closed / Lapsed |