US3594221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating fibrous materials
Assignee: General Mills Inc
•
Filing: 1968-03-25
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Granted: 1971-07-20
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Expires: 1988-03-25
Abstract
Abstract FIBROUS MATERIALS SUCH AS COTTON CLOTH ARE TREATED WITH AN ACID OR ALKALI METAL MONTMORILLONITE CLAY AND THEN WITH A CATIONIC GERMICIDE TO RENDER THE SAME RESISTANT TO BACTERIAL ACTION FOR EXTENDED PERIODS OF TIME.
Inventors
- 👤 William S Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:50
CPC Classifications
D; D06; D06M; D06M16/00; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T442/00; Y10T442/20; Y10T442/2525
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |