US2839429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of cellulosic textile materials
Assignee: Tootal Broadhurst Lee Co Ltd
•
Filing: 1953-08-31
•
Granted: 1958-06-17
•
Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Marsh John Thompson
- 👤 Bell George
- 👤 Thompson Alec Geoffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; D06M15/39; D06M15/41; D06M15/412; D06M15/423; Y; Y10; Y10S; Y10S8/00; Y10S8/01; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2971; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE PROCESS FOR IMPROVING THE WET CREASE-RESISTANCE PROPERTIES OF A CELLULOSIC FABRIC COMPRISING THE STEPS OF IMPREGNATING SAID MATERIAL WITH AN AQUEOUS MEDIUM CONSISTING ESSENTIALLY OF WATER, A CRYSTALLOIDAL INTERMEDIATE CONDENSATION PRODUCT SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE, MELAMINE-FORMALDEHYDE AND MIXTURES THEREOF, AND A POLYSILOXANE OIL CURABLE BY HEAT TO A SOLID INFUSIBLE STATE SELECTED FROM THE GROUP CONSISTING OF METHYL HYDROGEN POLYSILOXANE AND ETHYL HYDROGEN POLYSILOXANE, SAID CONDENSATION PRODUCT BEING PRESENT ON SAID FABRIC IN AN AMOUNT OF ABOUT 4 PARTS BY WEIGHT FOR EACH PART OF SAID POLYSILOXANE OIL, DRYING THE IMPREGNATED FABRIC AND THEN SUBJECTING SAID FABRIC TO HEAT SUFFICIENT TO RENDER SAID CONDENSATION PRODUCT INSOLUBLE AND SAID POLYSILOXANE OIL INFUSIBLE.
Claim 2
Dependent Claim
115 words
THE PROCESS FOR IMPROVING THE WET CREASE-RESISTANCE PROPERTIES OF A CELLULOSIC FABRIC COMPRISING THE STEPS OF IMPREGNATING SAID MATERIAL WITH AN AQUEOUS MEDIUM CONSISTING ESSENTIALLY OF WATER, A CRYSTALLOIDAL INTERMEDIATE CONDENSATION PRODUCT SELECTED FROM THE GROUP CONSISTING OF UREA-FORMALDEHYDE, MELAMINE-FORMALDEHYDE AND MIXTURES THEREOF, AND A POLYSILOXANE OIL CURABLE BY HEAT TO A SOLID INFUSIBLE STATE SELECTED FROM THE GROUP CONSISTING OF METHYL HYDROGEN POLYSILOXANE AND ETHYL HYDROGEN POLYSILOXANE, SAID CONDENSATION PRODUCT BEING PRESENT ON SAID FABRIC IN AN AMOUNT OF ABOUT 4 PARTS BY WEIGHT FOR EACH PART OF SAID POLYSILOXANE OIL, DRYING THE IMPREGNATED FABRIC AND THEN SUBJECTING SAID FABRIC TO HEAT SUFFICIENT TO RENDER SAID CONDENSATION PRODUCT INSOLUBLE AND SAID POLYSILOXANE OIL INFUSIBLE.
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) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |