Patent US2897115A successfully refreshed from Google Patents.
US2897115A
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Process for extracting and reconstituting witch hazel
Assignee: Humphreys Medicine Co Inc
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Filing: 1955-10-28
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Granted: 1959-07-28
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Expires: 1975-10-28
Abstract
No abstract record available.
Inventors
- 👤 Dullaghan Matthew Edward
- 👤 Hochstadt Harold Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:02
CPC Classifications
A; A61; A61K; A61K36/00; A61K36/18; A61K36/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF EXTRACTING AND RECONSTITUTING WITCH HAZEL WHICH COMPRISES MIXING ACTIVATED CARBON WITH WITCH HAZEL WATER SUBSTANTIALLY FREE OF ALOCHOL TO ADSORB THE WITCH HAZEL ESSENCE FROM THE WATER, SEPARATING THE CARBON ODORANT ADSORBATE FROM THE LIQUID, ELUTING THE WITCH HAZEL ESSENCE FROM THE CARBON ORDORANT ADSORBATE BY MIXING SAID ADSORBATE WITH 50% TO 95% ETHANOL, SEPARATING THE ELUTE SOLUTION FROM THE CARBON AND ADDING WATER TO THE ELUTED SOLUTION.
Claim 2
Independent Claim
71 words
THE METHOD OF EXTRACTING AND RECONSTITUTING WITCH HAZEL WHICH COMPRISES MIXING ACTIVATED CARBON WITH WITCH HAZEL WATER SUBSTANTIALLY FREE OF ALOCHOL TO ADSORB THE WITCH HAZEL ESSENCE FROM THE WATER, SEPARATING THE CARBON ODORANT ADSORBATE FROM THE LIQUID, ELUTING THE WITCH HAZEL ESSENCE FROM THE CARBON ORDORANT ADSORBATE BY MIXING SAID ADSORBATE WITH 50% TO 95% ETHANOL, SEPARATING THE ELUTE SOLUTION FROM THE CARBON AND ADDING WATER TO THE ELUTED SOLUTION.
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) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |