Patent US3265972A successfully refreshed from Google Patents.
US3265972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater electric field communication system
Assignee: Individual
•
Filing: 1962-04-10
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Granted: 1966-08-09
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Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Curry Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:50
CPC Classifications
H; H04; H04B; H04B13/00; H04B13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF COMMUNICATING INTELLIGENCE BY ELECTRIC FIELD PROPAGATION COMPRISING THE STEPS OF: (A) POSITIONING A FIRST PAIR OF CONDUCTING PLATES IN A PROPAGATING MEDIUM; (B) GENERATING AN ALTERNATING CURRENT SIGNAL; (C) APPLYING SAID ALTERNATING CURRENT SIGNAL TO OPPOSITE PLATES OF SAID PAIR OF PLATES TO INDUCE AND ELECTROSTATIC CHARGE TO SAID MEDIUM; (D) SUPERIMPOSING A DIRECT CURRENT SIGNAL ON SAID ALTERNATING CURRENT SIGNAL TO SUPPLY A CONSTANT POLARIZING POTENTIAL TO SAID PAIR OF PAIR OF PLATES; (E) TRANSMITTING A COMPONENT OF SAID ALTERNATING CURRENT SIGNAL INTO SAID MEDIUM AS A VARYING ELECTRIC POTENTIAL DIFFERENCE; (F) POSITIONING A SECOND PAIR OF PLATES IN SAID MEDIUM AT A REMOTE POINT IN THE PATH OF THE TRANSMITTED SIGNAL; (G) RECEIVING THE TRANSMITTED SIGNAL BY MEANS OF SAID SECOND PLATES; (H) DETECTING THE ALTERNATING CURRENT COMPONENT TO PRODUCE A REPRESENTATION OF THE ALTERNATING CURRENT SIGNAL GENERATED AT THE TRANSMITTER.
Claim 2
Independent Claim
146 words
A METHOD OF COMMUNICATING INTELLIGENCE BY ELECTRIC FIELD PROPAGATION COMPRISING THE STEPS OF: (A) POSITIONING A FIRST PAIR OF CONDUCTING PLATES IN A PROPAGATING MEDIUM; (B) GENERATING AN ALTERNATING CURRENT SIGNAL; (C) APPLYING SAID ALTERNATING CURRENT SIGNAL TO OPPOSITE PLATES OF SAID PAIR OF PLATES TO INDUCE AND ELECTROSTATIC CHARGE TO SAID MEDIUM; (D) SUPERIMPOSING A DIRECT CURRENT SIGNAL ON SAID ALTERNATING CURRENT SIGNAL TO SUPPLY A CONSTANT POLARIZING POTENTIAL TO SAID PAIR OF PAIR OF PLATES; (E) TRANSMITTING A COMPONENT OF SAID ALTERNATING CURRENT SIGNAL INTO SAID MEDIUM AS A VARYING ELECTRIC POTENTIAL DIFFERENCE; (F) POSITIONING A SECOND PAIR OF PLATES IN SAID MEDIUM AT A REMOTE POINT IN THE PATH OF THE TRANSMITTED SIGNAL; (G) RECEIVING THE TRANSMITTED SIGNAL BY MEANS OF SAID SECOND PLATES; (H) DETECTING THE ALTERNATING CURRENT COMPONENT TO PRODUCE A REPRESENTATION OF THE ALTERNATING CURRENT SIGNAL GENERATED AT THE TRANSMITTER.
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |