US2957785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous metastable dispersion of tetravalent organo-tin compounds treating process
Assignee: Permachem Corp
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Filing: 1957-06-07
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Granted: 1960-10-25
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Expires: 1977-06-07
Abstract
No abstract record available.
Inventors
- 👤 Lawrence C Leatherland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:40
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/50; D06M13/51; D06M13/503; D06M16/00; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2525; Y10T442/2541
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD FOR TREATING A FIBROUS MATERIAL TO RENDER IT RESISTANT UPON REPEATED LAUNDERINGS, TO PESTIFEROUS ORGANISMS COMING INTO CONTACT THEREWITH, WHICH INCLUDES: CONTACTING THE MATERIAL WITH AN AQUEOUS METASTABLE DISPERSION OF A TETRAVALENT ORGANO-TIN COMPOUND, SAID DISPERSION CONSISTING ESSENTIALLY OF WATER, THE TETRAVALENT ORGANO-TIN COMPOUND, AND A SURFACE-ACTIVE AGENT, AND BREAKING THE AQUEOUS METASTABLE DISPERSION WHILE IN CONTACT WITH THE MATERIAL BY APPLICATION OF HEAT TO DEPOSIT THE ORGANO-TIN COMPOUND ON THE MATERIAL.
Claim 2
Independent Claim
74 words
A METHOD FOR TREATING A FIBROUS MATERIAL TO RENDER IT RESISTANT UPON REPEATED LAUNDERINGS, TO PESTIFEROUS ORGANISMS COMING INTO CONTACT THEREWITH, WHICH INCLUDES: CONTACTING THE MATERIAL WITH AN AQUEOUS METASTABLE DISPERSION OF A TETRAVALENT ORGANO-TIN COMPOUND, SAID DISPERSION CONSISTING ESSENTIALLY OF WATER, THE TETRAVALENT ORGANO-TIN COMPOUND, AND A SURFACE-ACTIVE AGENT, AND BREAKING THE AQUEOUS METASTABLE DISPERSION WHILE IN CONTACT WITH THE MATERIAL BY APPLICATION OF HEAT TO DEPOSIT THE ORGANO-TIN COMPOUND ON THE MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |