US2764683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low voltage electro-therapy generator
Assignee: PHYSICAL MEDICINE PRODUCTS CO
•
Filing: 1952-04-18
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Granted: 1956-09-25
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Expires: 1972-04-18
Abstract
No abstract record available.
Inventors
- 👤 Groff Mark E De
- 👤 Leah M Paust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/36003; A61N1/36014; A61N1/3603; A61N1/36034; Y; Y10; Y10S; Y10S128/00; Y10S128/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1513760A
Cited
US1568979A
Cited
US2022067A
Cited
US1961253A
Cited
GB506544A
Cited
US2622200A
Cited
US2668540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |