US2581836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic treatment of articles comprising vinyl resins and treated articles
Assignee: Wyeth Holdings LLC
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Filing: 1948-12-30
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Granted: 1952-01-08
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Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 Cresswell Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:18
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/256; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; 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
49 words
THE METHOD OF CONDITIONING A SHAPED ARTICLE COMPRISING A THERMOPLASTIC VINYL RESIN TO LESSEN ITS TENDENCY TO ACCUMULATE STATIC CHARGES OF ELECTRICITY THEREON, SAID METHOD COMPRISING APPLYING TO THE SAID ARTICLE A VOLATILE LIQUID CONTAINING A GUANYLUREA SALT OF A MONO-ALIPHATIC ESTER OF SULFURIC ACID REPRESENTED BY THE FORMULA
Claim 2
Independent Claim
49 words
THE METHOD OF CONDITIONING A SHAPED ARTICLE COMPRISING A THERMOPLASTIC VINYL RESIN TO LESSEN ITS TENDENCY TO ACCUMULATE STATIC CHARGES OF ELECTRICITY THEREON, SAID METHOD COMPRISING APPLYING TO THE SAID ARTICLE A VOLATILE LIQUID CONTAINING A GUANYLUREA SALT OF A MONO-ALIPHATIC ESTER OF SULFURIC ACID REPRESENTED BY THE FORMULA
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) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |