Patent US3662757A successfully refreshed from Google Patents.
US3662757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diathermy plate electrode
Assignee: Smiths Group PLC
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Filing: 1970-04-14
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Granted: 1972-05-16
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Expires: 1990-04-14
Abstract
Abstract This invention relates to a plate electrode for use in surgical diathermy or electrosurgical apparatus. The electrode is a thin flexible sheet of metal foil backed by a flexible film of plastics material.
Inventors
- 👤 John Harold Blackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
27 words
The plate electrode device of claim 1 wherein said sheet electrode and bands are substantially coplanar and said pair of bands are spirally wound about said electrode.
Claim 2
Dependent Claim
21 words
The plate electrode device of claim 2 wherein the confronting edges of successive convolutions of said band pair are separably joined.
Claim 3
Dependent Claim
19 words
The plate electrode device of claim 1 including electrical coupling elements connected to the outer ends of said bands.
Claim 4
Dependent Claim
22 words
A plate electrode as claimed in claim 1, wherein the electrode is of aluminum foil and the backing is of a polyester.
Claim 5
Dependent Claim
20 words
A plate electrode as claimed in claim 1 wherein the electrode is of copper and the backing is of polyester.
References Cited (Backward Citations)
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Cited
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US1662446A
Cited
US1853814A
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US1889272A
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US1975518A
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US1989282A
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US2628998A
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Cited
US3229030A
Cited
US2985172A
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US3543760A
Cited
US3547105A
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US3572322A
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |