US2543539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic treatment of shaped articles comprising a vinyl resin and treated articles
Assignee: Wyeth Holdings LLC
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Filing: 1949-01-28
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Granted: 1951-02-27
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Expires: 1969-01-28
Abstract
No abstract record available.
Inventors
- 👤 Wizon Irvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:07
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/432; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S260/20; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/31504; Y10T428/31855; Y10T428/31935; Y10T442/00; Y10T442/20; Y10T442/2418; Y10T442/2459; Y10T442/2861; Y10T442/2885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF CONDITIONING A SHAPED ARTICLE COMPRISING A THERMOPLASTIC VINYL RESIN CONTAINING IN ITS MOLECULES A SUBSTANTIAL AMOUNT OF COMBINED ACRYLONITRILE IN ORDER TO LESSEN ITS TENDENCY TO ACCUMLATE STATIC CHARGES OF ELECTRICITY THEREON, SAID METHOD COMPRISING APPLYING TO THE SAID ARTICLE A VOLATILE LIQUID CONTAINING PHENYLGUANIDINE STEARATE IN AN AMOUNT SUCH THAT THE FINISHED ARTICLE HAS ASSOCIATED THEREWITH FROM, BY WEIGHT, 0.2% TO 4% OF THE SAID STEARATE, BASED ON THE WEIGHT OF THE DRIED, UNTREATED PARTICLE, AND DRYING THE THUSLY TREATED ARTICLE.
Claim 2
Independent Claim
85 words
THE METHOD OF CONDITIONING A SHAPED ARTICLE COMPRISING A THERMOPLASTIC VINYL RESIN CONTAINING IN ITS MOLECULES A SUBSTANTIAL AMOUNT OF COMBINED ACRYLONITRILE IN ORDER TO LESSEN ITS TENDENCY TO ACCUMLATE STATIC CHARGES OF ELECTRICITY THEREON, SAID METHOD COMPRISING APPLYING TO THE SAID ARTICLE A VOLATILE LIQUID CONTAINING PHENYLGUANIDINE STEARATE IN AN AMOUNT SUCH THAT THE FINISHED ARTICLE HAS ASSOCIATED THEREWITH FROM, BY WEIGHT, 0.2% TO 4% OF THE SAID STEARATE, BASED ON THE WEIGHT OF THE DRIED, UNTREATED PARTICLE, AND DRYING THE THUSLY TREATED ARTICLE.
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) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |