US2534703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry resinate composition
Assignee: Hercules Powder Co
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Filing: 1947-10-18
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Granted: 1950-12-19
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Expires: 1967-10-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Earl Stanley Fenelon
- 👤 Edwin C Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:27
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/62; C; C08; C08L; C08L93/00; C08L93/04; D21H17/20; D21H17/33; D21H17/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A DRY RESINATE COMPOSITION COMPRISING DRY, SAPONIFIED ROSIN AND A PETROLEUM RESIN CONTAINING LESS THAN 5% ASPHALTENES, THE COMPOSITION BEING CHARACTERIZED BY BEING DISPERSIBLE IN WATER TO FORM A DISPERSION FREE FROM ASPHALTIC AGGLOMERATES, THE PETROLEUM RESIN COMPRISING UP TO TWOTHIRDS OF THE TOTAL SOLIDS OF THE COMPOSITION, SAID PETROLEUM RESIN BEING ISOLATED FROM PETROLEUM DISTILLATION RESIDUES AND BEING THE RESIN WHICH IS OBTAINED THEREFROM THROUGH THE ADDITION OF PROPANE IN AN AMOUNT TO PRECIPITATE THE ASPHALT CONTENT OF THE PETROLEUM DISTILLATION RESIDUE AND SUBSEQUENT ADDITION, TO THE SUBSTANTIALLY ASPHALTFREE PETROLEUM RESIDUE, OF A FURTHER QUANTITY OF PROPANE TO PRECIPITATE THE PETROLEUM RESIN THEREFROM.
Claim 2
Dependent Claim
104 words
A DRY RESINATE COMPOSITION COMPRISING DRY, SAPONIFIED ROSIN AND A PETROLEUM RESIN CONTAINING LESS THAN 5% ASPHALTENES, THE COMPOSITION BEING CHARACTERIZED BY BEING DISPERSIBLE IN WATER TO FORM A DISPERSION FREE FROM ASPHALTIC AGGLOMERATES, THE PETROLEUM RESIN COMPRISING UP TO TWOTHIRDS OF THE TOTAL SOLIDS OF THE COMPOSITION, SAID PETROLEUM RESIN BEING ISOLATED FROM PETROLEUM DISTILLATION RESIDUES AND BEING THE RESIN WHICH IS OBTAINED THEREFROM THROUGH THE ADDITION OF PROPANE IN AN AMOUNT TO PRECIPITATE THE ASPHALT CONTENT OF THE PETROLEUM DISTILLATION RESIDUE AND SUBSEQUENT ADDITION, TO THE SUBSTANTIALLY ASPHALTFREE PETROLEUM RESIDUE, OF A FURTHER QUANTITY OF PROPANE TO PRECIPITATE THE PETROLEUM RESIN THEREFROM.
References Cited (Backward Citations)
US2223086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |