Patent US3638327A successfully refreshed from Google Patents.
US3638327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing aluminum chlorhydroxides
Assignee: Gillette Co LLC
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Filing: 1969-04-17
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Granted: 1972-02-01
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Expires: 1989-04-17
Abstract
Abstract The present invention is concerned with novel aluminum chlorhydroxides which have substantially improved solubility in alcohols and with processes for preparing such chlorhydroxides. Generally, the chlorhydroxides of the present invention are produced by freeze drying aluminum chlorhydroxides from aqueous solutions.
Inventors
- 👤 Edward F Levy
- 👤 Roy H Karlson
- 👤 Ursula E Hornig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:43
CPC Classifications
A; A61; A61Q; A61Q15/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/26; C; C01; C01F; C01F7/00; C01F7/48; C01F7/56; C01F7/57
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
11 words
A process as defined in claim 1 wherein y is 5.
References Cited (Backward Citations)
US2813350A
Cited
US2876163A
Cited
US3523153A
Cited
US3476509A
Cited
US3452445A
Cited
US3440732A
Cited
US3523129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |