Patent US2889833A successfully refreshed from Google Patents.
US2889833A
Expired / Lapsed
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Glyceryl monomercaptan composition and method of cold waving
Assignee: Sales Affiliates Inc
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Filing: 1951-12-03
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Granted: 1959-06-09
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Expires: 1971-12-03
Abstract
No abstract record available.
Inventors
- 👤 Mcdonough Everett Goodrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:02
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PERMANENT WAVING COMPOSITION COMPRISING GLYCERYL MONOMERCAPTAN IN A SOLUTION CONTAINING A BASE HAVING A DISSOCIATION CONSTANT LESS THAN 10-3, AND A SALT OF SAID BASE, SAID SALT BEING FORMED FROM AN ACID HAVING A DISSOCIATION CONSTANT LESS THAN THAT OF SAID BASE, SAID SOLUTION HAVING A PH HIGHER THAN PH 7 AND NOT HIGHER THAN PH 9.5, THE CONCENTRATION OF SAID MERCAPTAN IN TERMS OF WEIGHT PER VOLUME RANGING BETWEEN ABOUT 1% AND ABOUT 10%.
Claim 2
Dependent Claim
76 words
A PERMANENT WAVING COMPOSITION COMPRISING GLYCERYL MONOMERCAPTAN IN A SOLUTION CONTAINING A BASE HAVING A DISSOCIATION CONSTANT LESS THAN 10-3, AND A SALT OF SAID BASE, SAID SALT BEING FORMED FROM AN ACID HAVING A DISSOCIATION CONSTANT LESS THAN THAT OF SAID BASE, SAID SOLUTION HAVING A PH HIGHER THAN PH 7 AND NOT HIGHER THAN PH 9.5, THE CONCENTRATION OF SAID MERCAPTAN IN TERMS OF WEIGHT PER VOLUME RANGING BETWEEN ABOUT 1% AND ABOUT 10%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |