US2864723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid resistant cellulosic material and process for producing same
Assignee: Wyeth Holdings LLC
•
Filing: 1956-08-23
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Granted: 1958-12-16
•
Expires: 1976-08-23
Abstract
No abstract record available.
Inventors
- 👤 Linton A Fluck
- 👤 Theodore F Cooke
- 👤 Philip B Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:51
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2033; Y10T442/2549; Y10T442/2574
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR TREATING TEXTILE MATERIAL CONTAINING AT LEAST 50% OF CELLULOSIC MATERIAL TO RENDER THE SAME RESISTANT TO ACID DEGRADATION WHICH INCLUDES THE APPLICATION OF AN AMINOPLAST RESIN THERETO, COMPRISING APPLYING TO SAID FABRIC AT LEAST 10% BASED ON THE WEIGHT OF THE FABRIC OF A WATER-SOLUBLE GROUP II METAL SALT, DRYING SAID MATERIAL, AND PRECIPITATING SAID SALT WITH BASIC COMPOUND CAPABLE OF FORMING WATER-INSOLUBLE GROUP II METAL COMPOUND SELECTED FROM THE GROUPS CONSISTING OF OXIDES AND HYDROXIDES.
Claim 2
Dependent Claim
79 words
A PROCESS FOR TREATING TEXTILE MATERIAL CONTAINING AT LEAST 50% OF CELLULOSIC MATERIAL TO RENDER THE SAME RESISTANT TO ACID DEGRADATION WHICH INCLUDES THE APPLICATION OF AN AMINOPLAST RESIN THERETO, COMPRISING APPLYING TO SAID FABRIC AT LEAST 10% BASED ON THE WEIGHT OF THE FABRIC OF A WATER-SOLUBLE GROUP II METAL SALT, DRYING SAID MATERIAL, AND PRECIPITATING SAID SALT WITH BASIC COMPOUND CAPABLE OF FORMING WATER-INSOLUBLE GROUP II METAL COMPOUND SELECTED FROM THE GROUPS CONSISTING OF OXIDES AND HYDROXIDES.
References Cited (Backward Citations)
US1765581A
Cited
US1963975A
Cited
US2038723A
Cited
US2681867A
Cited
US2684347A
Cited
US2690404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |