US2631944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic driers in organic film forming compositions
Assignee: Sherwin Williams Co
•
Filing: 1950-03-02
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Granted: 1953-03-17
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Expires: 1970-03-02
Abstract
No abstract record available.
Inventors
- 👤 Charles A Coffey
- 👤 Russell T Ryan
- 👤 Lynwood N Whitehill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:29
CPC Classifications
C; C09; C09F; C09F9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A COMPOSITION OF MATTER WHICH COMPRISES IN COMBINATION AN ORGANIC FILM FORMING AGENT CONTAINING DRYING OIL FATTY ACID GROUPS AND AN AROMATIC METAL FREE ORGANIC DRIER CATALYST SELECTED FROM THE GROUP CONSISTING OF B-METHYL UMBELLIFERONE, PARA-HYDROXY BENZALDEHYDE AND PARAHYDROXY PROPIOPHENONE.
Claim 2
Dependent Claim
40 words
A COMPOSITION OF MATTER WHICH COMPRISES IN COMBINATION AN ORGANIC FILM FORMING AGENT CONTAINING DRYING OIL FATTY ACID GROUPS AND AN AROMATIC METAL FREE ORGANIC DRIER CATALYST SELECTED FROM THE GROUP CONSISTING OF B-METHYL UMBELLIFERONE, PARA-HYDROXY BENZALDEHYDE AND PARAHYDROXY PROPIOPHENONE.
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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |