Patent US2427687A successfully refreshed from Google Patents.
US3289671A
Expired / Lapsed
US
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Iontophoresis method
Assignee: Individual
•
Filing: 1963-09-11
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Granted: 1966-12-06
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Expires: 1983-09-11
Abstract
No abstract record available.
Inventors
- 👤 Troutman Edwin Glenn
- 👤 William E Romans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:24
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/20; A61N1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF OBTAINING SAMPLES OF SWEAT FROM A BODY MEMBER BY IONTOPHORESIS, SAID METHOD COMPRISING THE STEPS OF PLACING ON ONE SIDE OF THE BODY MEMBER A PAD SATURATED WITH A LIQUID CAPABLE OF STIMULATING SECRETION OF SWEAT UPON CONTACT WITH SWEAT GLANDS, APPLYING A POSITIVE ELECTRODE TO SAID PAD, APPLYING A NEGATIVE ELECTRODE TO THE RELATIVELY OPPOSITE SIDE OF THE BODY MEMBER, AND APPLYING AN ELECTRIC CURRENT OF A CONSTANT AMPERAGE TO SAID ELECTRODES, WHEREBY SAID LIQUID MAY BE INTRODUCED INTO THE SKIN AT A CONSTANT RATE PROPORTIONATE TO THE CONSTANT CURRENT STRENGTH.
Claim 2
Independent Claim
95 words
A METHOD OF OBTAINING SAMPLES OF SWEAT FROM A BODY MEMBER BY IONTOPHORESIS, SAID METHOD COMPRISING THE STEPS OF PLACING ON ONE SIDE OF THE BODY MEMBER A PAD SATURATED WITH A LIQUID CAPABLE OF STIMULATING SECRETION OF SWEAT UPON CONTACT WITH SWEAT GLANDS, APPLYING A POSITIVE ELECTRODE TO SAID PAD, APPLYING A NEGATIVE ELECTRODE TO THE RELATIVELY OPPOSITE SIDE OF THE BODY MEMBER, AND APPLYING AN ELECTRIC CURRENT OF A CONSTANT AMPERAGE TO SAID ELECTRODES, WHEREBY SAID LIQUID MAY BE INTRODUCED INTO THE SKIN AT A CONSTANT RATE PROPORTIONATE TO THE CONSTANT CURRENT STRENGTH.
References Cited (Backward Citations)
US542459A
Cited
US562765A
Cited
US2447127A
Cited
US2684670A
Cited
US2784715A
Cited
US2812757A
Cited
US2978084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |