Patent FR863192A successfully refreshed from Google Patents.
US2710285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper coating composition containing an optical brightener
Assignee: DAVICS YOUNG SOAP Co
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Filing: 1951-08-11
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Granted: 1955-06-07
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Expires: 1971-08-11
Abstract
No abstract record available.
Inventors
- 👤 Ralf B Trusler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:57
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/30; D21H19/00; D21H19/10; D21H19/14; D21H19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
IN A NEW COMPOSITION OF MATTER FOR SURFACE COATING OF PAPER, THE COMBINATION OF CARNAUBA WAX, REFINED, 100.0 GRAMS: OLEIC ACID, 15.0 GRAMS; ISOPROPANOPANLAMINE, 6.0 GRAMS; ALPHA BENZYL B-METHYL UMBELLIFERONE, 1.0 GRAMS; AND WATER, DISTILLED, 900.0 GRAMS.
Claim 2
Dependent Claim
37 words
IN A NEW COMPOSITION OF MATTER FOR SURFACE COATING OF PAPER, THE COMBINATION OF CARNAUBA WAX, REFINED, 100.0 GRAMS: OLEIC ACID, 15.0 GRAMS; ISOPROPANOPANLAMINE, 6.0 GRAMS; ALPHA BENZYL B-METHYL UMBELLIFERONE, 1.0 GRAMS; AND WATER, DISTILLED, 900.0 GRAMS.
References Cited (Backward Citations)
US2341009A
Cited
GB522672A
Cited
US2374414A
Cited
US2528324A
Cited
US2541006A
Cited
US2536018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |