US2980629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gel-free rosin soap and method of preparing same
Assignee: Hercules Powder Co
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Filing: 1957-09-13
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Granted: 1961-04-18
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Expires: 1977-09-13
Abstract
No abstract record available.
Inventors
- 👤 Charles M Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:40
CPC Classifications
C; C11; C11D; C11D15/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
THE PROCESS OF FORMING A LIQUID GEL-FREE ROSIN SOAP WHICH COMPRISES FORMING A MIXTURE OF (1) ROSIN, (2) A SAPONIFYING AGENT SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM ALKALI, (3) A SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE AND POTASSIUM CHLORIDE AND (4) WATER, REACTING THE MIXTURE TO FORM A SOAP, AND ADJUSTING THE ACID NUMBER, TOTAL SOLIDS CONTENT AND SALT CONTENT SUCH THAT THE POTASSIUM SOAP HAS AN ACID NUMBER FROM ABOUT 17 TO ABOUT 22, A TOTAL SOLIDS CONTENT FROM ABOUT 78% TO ABOUT 82% AND A SALT CONTENT FROM ABOUT 1.8% TO ABOUT 2.0%, BASED ON THE TOTAL SOLIDS, AND THE SODIUM SOAP HAS AN ACID NUMBER FROM ABOUT 22 TO ABOUT 26, A TOTAL SOLIDS CONTENT FROM ABOUT 75% TO ABOUT 79%, AND A SALT CONTENT FROM ABOUT 1.8% TO ABOUT 2.0%, BASED ON THE WEIGHT OF THE SOLIDS.
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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |