US3096768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrotherapy system
Assignee: FIRMATRON Inc
•
Filing: 1960-05-27
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Granted: 1963-07-09
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Expires: 1980-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Benjamin Whitfield Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:04
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN ELECTROTHERAPY SYSTEM COMPRISING A HIGH FREQUENCY SOURCE, A LOW FREQUENCY SOURCE, A PHASE SPLITTING NETWORK COUPLED TO EACH OF SAID SOURCES ADAPTED TO SPLIT THE CURRENT FROM EACH SOURCE INTO TWO CURRENTS PHASED 90* APART, A BALANCED MODULATOR ADAPTED TO RECEIVE ONE OF THE HIGH FREQUENCY CURRENTS AS A CARRIER AND ONE OF THE LOW FREQUENCY CURRENTS AS A SIGNAL, A SECOND BALANCED MODULATOR ADAPTED SIMILARLY TO RECEIVE THE REMAINNING TWO CURRENTS, MEANS FOR COMBINING THE OUTPUTS OF THE TWO MODULATORS, A PAIR OF INSULATED ELECTRODES ADAPTED TO RECEIVE THE COMBINED OUTPUTS OF THE TWO MODULATORS, AND. A SECOND PAIR OF INSULATED ELECTODES ADAPTED TO RECEIVED CURRENT DIRECTLY FROM THE HIGH FREQUENCY SOURCE.
Claim 2
Dependent Claim
114 words
AN ELECTROTHERAPY SYSTEM COMPRISING A HIGH FREQUENCY SOURCE, A LOW FREQUENCY SOURCE, A PHASE SPLITTING NETWORK COUPLED TO EACH OF SAID SOURCES ADAPTED TO SPLIT THE CURRENT FROM EACH SOURCE INTO TWO CURRENTS PHASED 90* APART, A BALANCED MODULATOR ADAPTED TO RECEIVE ONE OF THE HIGH FREQUENCY CURRENTS AS A CARRIER AND ONE OF THE LOW FREQUENCY CURRENTS AS A SIGNAL, A SECOND BALANCED MODULATOR ADAPTED SIMILARLY TO RECEIVE THE REMAINNING TWO CURRENTS, MEANS FOR COMBINING THE OUTPUTS OF THE TWO MODULATORS, A PAIR OF INSULATED ELECTRODES ADAPTED TO RECEIVE THE COMBINED OUTPUTS OF THE TWO MODULATORS, AND. A SECOND PAIR OF INSULATED ELECTODES ADAPTED TO RECEIVED CURRENT DIRECTLY FROM THE HIGH FREQUENCY SOURCE.
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |