Patent US3140227A successfully refreshed from Google Patents.
US3140227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Durable germicidal finish for hydrophobic polyamide textile materials
Assignee: Wyeth Holdings LLC
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Filing: 1961-02-14
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Granted: 1964-07-07
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Expires: 1981-02-14
Abstract
No abstract record available.
Inventors
- 👤 Philip B Roth
- 👤 Leonard B Hallows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:36
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; D; D06; D06M; D06M16/00; Y; Y10; Y10S; Y10S8/00; Y10S8/21; Y10T; Y10T442/00; Y10T442/20; Y10T442/2525
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A METHOD FOR PROVIDING A DURABLE ANTIBACTERIAL FINISH ON A SYNTHETIC HYDROPHOBIC POLYAMIDE TEXTILE MATERIAL WHICH COMPRISES APPLYING TO SAID MATERIAL BETWEEN ABOUT .01 AND .05% OF NEOMYCIN AND FROM BETWEEN ABOUT 5 AND ABOUT 2% OF POLYACRYLIC ACID BASED ON THE DRY WEIGHT OF THE TEXTILE MATERIAL, AND FROM ABOUT 5 TO ABOUT 7% OF A STRONGLY ACIDIC CATALYST BASED ON THE WEIGHT OF ACRYLIC ACID AND THEREAFTER SUBJECTING THE MATERIAL TO ELEVATED TEMPERATURES TO CURE THE FINISH 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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |