Patent US3022178A successfully refreshed from Google Patents.
US3022178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-fogging composition for polystyrene film and coated product
Assignee: Dow Chemical Co
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Filing: 1960-01-11
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Granted: 1962-02-20
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Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 William R R Park
- 👤 Richard L Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:59
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/054; C08J7/06; C08J7/065; C08J2325/00; C08J2325/02; C08J2325/04; C08J2325/06; C08J2471/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
AN ANTI-FOGGING COMPOSITION CONSISTING ESSENTIALLY OF AN INTIMATE MIXTURE OF FROM 50 TO 90 PERCENT BY WEIGHT OF A NON-IONIC SURFACTANT WHICH IS AN ALKYLPHENYL POLYETHYLENE GLYCOL ETHER HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
32 words
AN ANTI-FOGGING COMPOSITION CONSISTING ESSENTIALLY OF AN INTIMATE MIXTURE OF FROM 50 TO 90 PERCENT BY WEIGHT OF A NON-IONIC SURFACTANT WHICH IS AN ALKYLPHENYL POLYETHYLENE GLYCOL ETHER HAVING THE GENERAL 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) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |