US3138155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater swimming and diving suits
Assignee: Dunlop Rubber Co Ltd
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Filing: 1960-06-21
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Granted: 1964-06-23
•
Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Bould Geoffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:45
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/12; B63C11/14; B63C11/04; B63C11/08; F; F16; F16K; F16K15/00; F16K15/14; F16K15/148; B63C2011/043; B63C11/18; B63C2011/182; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87965
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
AN UNDERWATER SWIMMING AND DIVING SUIT COMPRISING A BODY PORTION OF THIN, FLEXIBLE MATERIAL TO ENCLOSE THE BODY OF A DIVER, A FACE MASK HAVING AN INLET FOR AIR UNDER PRESSURE AND A CONNECTION FROM SAID MASK TO SAID BODY PORTION COMPRISING A TUBULAR EXTENSION OPENING FROM SAID MASK, A NORMALLY CLOSED FLAP VALVE FIXED IN SAID EXTENSION AND OPENING FROM SAID MASK INTO SAID EXTENSION, A CONNECTING TUBE FROM SAID BODY PORTION TO SAID EXTENSION, A VALVE CASING MOUNTED FLUID-TIGHTLY IN SAID CONNECTING TUBE AND DETACHABLY SECURED FLUID-TIGHTLY IN SAID EXTENSION, AN ANNULAR VALVE SEAT IN SAID VALVE CASING, A VALVE, MEANS RESILIENTLY PRESSING SAID VALVE TOWARD SAID NORMALLY CLOSED FLAP VALVE TO SEAT ON SAID VALVE SEAT AND SAID VALVE HAVING A STEM PROJECTING TO CONTACT WITH SAID NORMALLY CLOSED FLAP VALVE TO LIFT SAID VALVE FROM SAID VALVE SEAT WHEN SAID VALVE CASING IS SECURED IN SAID EXTENSION AND TO RELEASE SAID VALVE WHEN SAID VALVE CASING IS DETACHED FROM SAID EXTENSION.
Claim 2
Dependent Claim
165 words
AN UNDERWATER SWIMMING AND DIVING SUIT COMPRISING A BODY PORTION OF THIN, FLEXIBLE MATERIAL TO ENCLOSE THE BODY OF A DIVER, A FACE MASK HAVING AN INLET FOR AIR UNDER PRESSURE AND A CONNECTION FROM SAID MASK TO SAID BODY PORTION COMPRISING A TUBULAR EXTENSION OPENING FROM SAID MASK, A NORMALLY CLOSED FLAP VALVE FIXED IN SAID EXTENSION AND OPENING FROM SAID MASK INTO SAID EXTENSION, A CONNECTING TUBE FROM SAID BODY PORTION TO SAID EXTENSION, A VALVE CASING MOUNTED FLUID-TIGHTLY IN SAID CONNECTING TUBE AND DETACHABLY SECURED FLUID-TIGHTLY IN SAID EXTENSION, AN ANNULAR VALVE SEAT IN SAID VALVE CASING, A VALVE, MEANS RESILIENTLY PRESSING SAID VALVE TOWARD SAID NORMALLY CLOSED FLAP VALVE TO SEAT ON SAID VALVE SEAT AND SAID VALVE HAVING A STEM PROJECTING TO CONTACT WITH SAID NORMALLY CLOSED FLAP VALVE TO LIFT SAID VALVE FROM SAID VALVE SEAT WHEN SAID VALVE CASING IS SECURED IN SAID EXTENSION AND TO RELEASE SAID VALVE WHEN SAID VALVE CASING IS DETACHED FROM SAID EXTENSION.
References Cited (Backward Citations)
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |