Patent US2531359A successfully refreshed from Google Patents.
US2531359A
Expired / Lapsed
US
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Activator solution for machineless hair-waving pads
Assignee: LOUISE R HUNTER
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Filing: 1948-01-31
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Granted: 1950-11-21
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Expires: 1968-01-31
Abstract
No abstract record available.
Inventors
- 👤 Harry W Mace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:12
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN ACTIVATOR SOLUTION FOR USE WITH A NORMALLY WATER-ACTIVATED MACHINELESS HAIR WAVING PAD, SAID SOLUTION COMPRISING A POLYXYETHYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT RANGING BETWEEN ABOUT 1000 AND ABOUT 7000 IN AN AMOUNT RANGING BETWEEN ABOUT 5% AND ABOUT 20% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION, AMMONIUM CHLORIDE IN AN AMOUNT VARYING BETWEEN ABOUT 1/2% TO ABOUT 8% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION, ALUMINUM CHLORIDE IN AN AMOUNT VARYING BETWEEN ABOUT 2 1/2% TO ABOUT 10% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION AND WATER IN AN AMOUNT VARYING BETWEEN ABOUT 60% AND ABOUT 90% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION.
Claim 2
Dependent Claim
118 words
AN ACTIVATOR SOLUTION FOR USE WITH A NORMALLY WATER-ACTIVATED MACHINELESS HAIR WAVING PAD, SAID SOLUTION COMPRISING A POLYXYETHYLENE GLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT RANGING BETWEEN ABOUT 1000 AND ABOUT 7000 IN AN AMOUNT RANGING BETWEEN ABOUT 5% AND ABOUT 20% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION, AMMONIUM CHLORIDE IN AN AMOUNT VARYING BETWEEN ABOUT 1/2% TO ABOUT 8% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION, ALUMINUM CHLORIDE IN AN AMOUNT VARYING BETWEEN ABOUT 2 1/2% TO ABOUT 10% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION AND WATER IN AN AMOUNT VARYING BETWEEN ABOUT 60% AND ABOUT 90% BY WEIGHT BASED ON THE WEIGHT OF THE TOTAL SOLUTION.
References Cited (Backward Citations)
US2040407A
Cited
US2160744A
Cited
US2173297A
Cited
US2168562A
Cited
US2239410A
Cited
US2309722A
Cited
US2350926A
Cited
US2421778A
Cited
US2416639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |