US3671292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zirconium anti-soil treatment of synthetic fibers and resultant article
Assignee: Monsanto Co
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Filing: 1969-07-15
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Granted: 1972-06-20
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Expires: 1989-07-15
Abstract
Abstract DURABLE ANTI-SOILING CHARACTERISTICS ARE IMPARTED TO TEXTILE ARTICLES COMPRISED OF SYNTHETIC FIBERS BY TREATING THEM WITH AN ACIDIC AQUEOUS SOLUTION CONTAINING A ZIRCONIUM SALT AND A DERIVATIVE OF AMMONIA, THEN DRYING THE TEXTILE ARTICLE THEREBY TO BOND THE EVAPORATION RESIDUE OF THE SOLUTION, A ZIRCONIUM REACTION PRODUCT, TO THE SYNTHETIC FIBERS. THE PROCESS MAY BE VARIED BY FIRST TREATING THE FIBERS WITH THE ZIRCONIUM SALT FOLLOWED BY TREATMENT WITH THE DERIVATIVE OF AMMONIA.
Inventors
- 👤 Julian J Hirshfeld
- 👤 Bertie J Reuben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:03
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/68; D06M11/70; D06M11/71; D06M11/07; D06M11/11; D06M11/20; D06M11/32; D06M11/36; D06M11/46; D06M11/51; D06M11/55; D06M11/56; D06M11/58; D06M11/59; D06M11/60; D06M11/63; D06M11/64; D06M11/65; D06M11/73; D06M11/76; D06M13/00; D06M13/10; D06M13/184; D06M13/188; D06M13/322; D06M13/325; D06M13/335; D06M13/342; D06M13/35; D06M13/46; D06M13/463; D06M13/50; D06M13/503; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2861; Y10T442/2885; Y10T442/2893
Claims Analysis
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References Cited (Backward Citations)
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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 |