Patent US5911145A successfully refreshed from Google Patents.
US2646435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making white soap
Assignee: Procter and Gamble Co
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Filing: 1949-11-16
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Granted: 1953-07-21
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Expires: 1969-11-16
Abstract
No abstract record available.
Inventors
- 👤 Frank L Jackson
- 👤 John C Bayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:26
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/001; C11D; C11D13/00; C11D13/02; C11D13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE PROCESS OF TREATING HYDROGENATED VEGETABLE FATTY MATERIALS CONTAINING SUBSTANTIALLY COLORLESS COLOR PRECURSORS, WHICH COMPRISES THE STEPS OF TREATING SAID MATERIALS WITH ABOUT 0.1% OF A COMPOUND OF THE GROUP CONSISTING OF CHLORITES OF ALKALI METALS AND ALKALINE EARTH METALS IN WATER SOLUTION IN THE PRESENCE OF ABOUT 0.025% OF SULFURIC ACID AT A TEMPERATURE IN THE RANGE OF 100 TO 140* C. THEREBY CONVERTING THE COLOR PRECURSORS INTO COLORED MATERIALS, AND THEREAFTER ADMIXING WITH THE TREATED FATTY MATTER AN ALKALINE MATERIAL IN AMOUNT AT LEAST SUFFICIENT TO NEUTRALIZE THE REMAINING ACID, AND BLEACHING THE FATTY MATTER WITH FROM 0.5 TO 6% OF A BLEACHING EARTH AT A TEMPERATURE IN THE RANGE OF 100 TO 140* C., AND FILTERING THE OIL.
Claim 2
Dependent Claim
121 words
THE PROCESS OF TREATING HYDROGENATED VEGETABLE FATTY MATERIALS CONTAINING SUBSTANTIALLY COLORLESS COLOR PRECURSORS, WHICH COMPRISES THE STEPS OF TREATING SAID MATERIALS WITH ABOUT 0.1% OF A COMPOUND OF THE GROUP CONSISTING OF CHLORITES OF ALKALI METALS AND ALKALINE EARTH METALS IN WATER SOLUTION IN THE PRESENCE OF ABOUT 0.025% OF SULFURIC ACID AT A TEMPERATURE IN THE RANGE OF 100 TO 140* C. THEREBY CONVERTING THE COLOR PRECURSORS INTO COLORED MATERIALS, AND THEREAFTER ADMIXING WITH THE TREATED FATTY MATTER AN ALKALINE MATERIAL IN AMOUNT AT LEAST SUFFICIENT TO NEUTRALIZE THE REMAINING ACID, AND BLEACHING THE FATTY MATTER WITH FROM 0.5 TO 6% OF A BLEACHING EARTH AT A TEMPERATURE IN THE RANGE OF 100 TO 140* C., AND FILTERING THE OIL.
References Cited (Backward Citations)
US2269667A
Cited
US2483414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |