Patent US3671303A successfully refreshed from Google Patents.
US3671303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strong fire retardant webs
Assignee: Kimberly Clark Corp
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Filing: 1970-06-26
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Granted: 1972-06-20
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Expires: 1990-06-26
Abstract
Abstract NONWOVEN WEBS SUCH AS CELLULOSIC WEBS ARE TREATED WITH A BINDER POLYMER HAVING A LOW GLASS TRANSITION TEMPERATURE AND CONTAINING HALOGEN, SUBSTITUTES AND A FIRE RETARDING AGENT. THE RESULTING PRODUCTS ARE STRONG, DRAPABLE, AND FIRE RETARDANT.
Inventors
- 👤 Gary H Meitner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:43
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/587; Y; Y10; Y10S; Y10S260/00; Y10S260/24; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T442/00; Y10T442/20; Y10T442/2402; Y10T442/2631; Y10T442/2721
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |