US3137835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater sound generator
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1957-06-13
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Granted: 1964-06-16
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Expires: 1977-06-13
Abstract
No abstract record available.
Inventors
- 👤 Bielecki Mac
- 👤 Bernard M Wilner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:18
CPC Classifications
G; G10; G10K; G10K9/00; G10K9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
AN UNDERWATER SOUND GENERATOR COMPRISING: A WATER-TIGHT SUBMERSIBLE HOUSING; A PLURALITY OF PISTONS, THE OUTER FACES OF WHICH FORM A PORTION OF THE OUTER SURFACE OF SAID HOUSING; SEALING MEANS IN WATER-TIGHT ENGAGEMENT BETWEEN SAID PISTONS AND SAID HOUSING; MEANS RECIPROCATING SAID PISTONS THROUGH A CONSTANT DISTANCE;
Claim 2
Dependent Claim
47 words
AN UNDERWATER SOUND GENERATOR COMPRISING: A WATER-TIGHT SUBMERSIBLE HOUSING; A PLURALITY OF PISTONS, THE OUTER FACES OF WHICH FORM A PORTION OF THE OUTER SURFACE OF SAID HOUSING; SEALING MEANS IN WATER-TIGHT ENGAGEMENT BETWEEN SAID PISTONS AND SAID HOUSING; MEANS RECIPROCATING SAID PISTONS THROUGH A CONSTANT DISTANCE;
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |