US3136854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater telephone
Assignee: Individual
•
Filing: 1962-04-16
•
Granted: 1964-06-09
•
Expires: 1982-04-16
Abstract
No abstract record available.
Inventors
- 👤 Clark A Willick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:30
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/04; H04M1/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN AN UNDERWATER TELEPHONE SYSTEM, THE COMBINATION COMPRISING: A HEADSET INCLUDING A HEADBAND ADAPTED TO FIT AROUND A WEARER''S HEAD; A COMPACT EARPHONE RECEIVER POSITIONABLE AGAINST THE USER''S EAR, SAID RECEIVER HAVING A PERMANENT MAGNET, A DIAPHRAGM ADJACENT SAID MAGNET, AN IRON MEMBER ADJACENT SAID DIAPHRAGM, AND A WIRE COIL ADJACENT SAID IRON MEMBER, SAID COIL HAVING A PAIR OF LEAD WIRES; A TWO-PIECE WATERPROOF PLASTIC COVER COMPLETELY ENCASING SAID RECEIVER; A PLURALITY OF BOLTS SECURING SAID PLASTIC COVER PIECES TOGETHER AND SECURING THE SAME TO SAID HEADBAND, SAID COIL LEAD WIRES BEING CONNECTED TO SAID COVER BOLTS; AN INSULTED CIRCUIT CORD INCLUDING A PAIR OF WIRES CONNECTED TO SAID EARPHONE COVER BOLTS, SAID BOLTS PROVIDING ELECTRICAL CIRCUIT CONNECTIONS BETWEEN SAID CIRCUIT WIRES AND SAID COIL; A MICROPHONE
Claim 2
Dependent Claim
128 words
IN AN UNDERWATER TELEPHONE SYSTEM, THE COMBINATION COMPRISING: A HEADSET INCLUDING A HEADBAND ADAPTED TO FIT AROUND A WEARER''S HEAD; A COMPACT EARPHONE RECEIVER POSITIONABLE AGAINST THE USER''S EAR, SAID RECEIVER HAVING A PERMANENT MAGNET, A DIAPHRAGM ADJACENT SAID MAGNET, AN IRON MEMBER ADJACENT SAID DIAPHRAGM, AND A WIRE COIL ADJACENT SAID IRON MEMBER, SAID COIL HAVING A PAIR OF LEAD WIRES; A TWO-PIECE WATERPROOF PLASTIC COVER COMPLETELY ENCASING SAID RECEIVER; A PLURALITY OF BOLTS SECURING SAID PLASTIC COVER PIECES TOGETHER AND SECURING THE SAME TO SAID HEADBAND, SAID COIL LEAD WIRES BEING CONNECTED TO SAID COVER BOLTS; AN INSULTED CIRCUIT CORD INCLUDING A PAIR OF WIRES CONNECTED TO SAID EARPHONE COVER BOLTS, SAID BOLTS PROVIDING ELECTRICAL CIRCUIT CONNECTIONS BETWEEN SAID CIRCUIT WIRES AND SAID COIL; A MICROPHONE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |