US3177466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial sound channel
Assignee: RTX Corp
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Filing: 1960-09-29
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Granted: 1965-04-06
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Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 Robert A Arnoldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:29
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN UNDERWATER DETECTION SYSTEM COMPRISING MEANS FOR CREATING A CURTAIN OF WATER HAVING DIFFERENT CHARACTERISTICS THAN THE SURROUDING WATER, SAID CURTAIN EXTENDING FROM A PREDETERMINED DEPTH TO THE SURFACE AND EXTENDING IN A DIRECTION PARALLEL TO THE WATER SURFACE FOR A PREDETERMINED DISTANCE, SAID CURTAIN HAVING A PREDETERMINED THICKNESS PATTERN, SAID CURTAIN BEING CAPABLE OF CONDUCTING WAVE ENERGY A SUBSTANTIAL DISTANCE WHICH ENERGY IS CONFINED WITHIN THE CURTAIN BY THE CHARACTERISTIC DIFFERENCES OF THE ADJACENT WATER, AND SOUND RECEIVER MEANS IN SAID CURTAIN.
Claim 2
Dependent Claim
83 words
AN UNDERWATER DETECTION SYSTEM COMPRISING MEANS FOR CREATING A CURTAIN OF WATER HAVING DIFFERENT CHARACTERISTICS THAN THE SURROUDING WATER, SAID CURTAIN EXTENDING FROM A PREDETERMINED DEPTH TO THE SURFACE AND EXTENDING IN A DIRECTION PARALLEL TO THE WATER SURFACE FOR A PREDETERMINED DISTANCE, SAID CURTAIN HAVING A PREDETERMINED THICKNESS PATTERN, SAID CURTAIN BEING CAPABLE OF CONDUCTING WAVE ENERGY A SUBSTANTIAL DISTANCE WHICH ENERGY IS CONFINED WITHIN THE CURTAIN BY THE CHARACTERISTIC DIFFERENCES OF THE ADJACENT WATER, AND SOUND RECEIVER MEANS IN SAID CURTAIN.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |