US2839430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic agents for hydrophobic fiber
Assignee: EIDP Inc
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Filing: 1955-08-26
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Granted: 1958-06-17
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Expires: 1975-08-26
Abstract
No abstract record available.
Inventors
- 👤 Rimmer Robert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:48
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/2971
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
32 words
THE INTERPOLYMERS OBTAINED BY POLYMERIZING, AT A TEMPERATRE NOT EXCEEDING 100*C. AND IN THE PRESENCE OF A FREE-RADICAL POLYMERIZATION CATALYST, A MIXTURE OF AN ACRYLAMIDE AND OF AN ESTER OF THE FORMULA
Claim 2
Dependent Claim
32 words
THE INTERPOLYMERS OBTAINED BY POLYMERIZING, AT A TEMPERATRE NOT EXCEEDING 100*C. AND IN THE PRESENCE OF A FREE-RADICAL POLYMERIZATION CATALYST, A MIXTURE OF AN ACRYLAMIDE AND OF AN ESTER OF THE FORMULA
Claim 3
Dependent Claim
24 words
A PROCESS OF IMPROVING THE ELECTROSTATIC QUALITIES OF HYDROPHOBIC TEXTILE FIBER, WHICH COMPRISES IMPREGNATING THE SAME WITH AN INTERPOLYMER AS DEFINED IN CLAIM 1.
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) | 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 |