US2778741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elimination of haze from finishes
Assignee: Interchemical Corp
•
Filing: 1953-03-02
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Granted: 1957-01-22
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Expires: 1973-03-02
Abstract
No abstract record available.
Inventors
- 👤 Weber Ira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:37
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD OF PRODUCING A TRANSPARENT COLORED FILM OF ORGANIC FILM FORMING MATERIAL FRE OF HAZE, AND CONTAINING A FLUORESCENT DYESTUFF WHICH WOULD NORMALLY PRODUCE HAZE IN THE FILM, WHICH CONSISTS IN ADDING TO THE COMPOSITION USED FRO PRODUCING THE FILM, A SMALL AMOUNT OF A COLORED HEAVY METAL SLT SOLUBLE IN THE FILM FORMING COMPOSITION AND SELECTED FROM THE GROUP CONSISTING OF SALTS OF IRON, COBALT, NICKEL AND COPPER.
Claim 2
Independent Claim
70 words
THE METHOD OF PRODUCING A TRANSPARENT COLORED FILM OF ORGANIC FILM FORMING MATERIAL FRE OF HAZE, AND CONTAINING A FLUORESCENT DYESTUFF WHICH WOULD NORMALLY PRODUCE HAZE IN THE FILM, WHICH CONSISTS IN ADDING TO THE COMPOSITION USED FRO PRODUCING THE FILM, A SMALL AMOUNT OF A COLORED HEAVY METAL SLT SOLUBLE IN THE FILM FORMING COMPOSITION AND SELECTED FROM THE GROUP CONSISTING OF SALTS OF IRON, COBALT, NICKEL AND COPPER.
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) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |