US3307540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective suit
Assignee: Ocean Systems Inc
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Filing: 1964-03-10
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Granted: 1967-03-07
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Expires: 1984-03-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Link
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:09
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/04; B63C2011/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PROTECTIVE SUIT FOR ALLOWING THE WEARER THEREOF TO OPERATE IN WATER WHEREIN THE SURROUNDING WATER PRESSURE IS ABOVE ATMOSPHERIC COMPRISING, (A) A FIRST SMOOTH FLEXIBLE LAYER, AN OUTER SURFACE OF WHICH IS IN CONTACT WITH THE WEARER; (B) A SECOND SMOOTH FLEXIBLE WATER IMPERMEABLE LAYER COMPLETELY SURROUNDING AND SPACED APART FROM SAID FIRST SMOOTH FLEXIBLE LAYER, AN OUTER SURFACE OF WHICH IS IN CONTACT WITH THE WATER; (C) THE SPACE BETWEEN SAID FIRST AND SECOND LAYERS BEING SUBSTANTIALLY OCCUPIED BY A SOFT RUBBER-LIKE PLIANT MATERIAL INCLUDING A PLURALITY OF INTERCONNECTED CHANNELS THERETHROUGH ARRANGED TO FORM A CLOSED GAS CIRCUIT BETWEEN SAID FIRST AND SECOND SMOOTH FLEXIBLE LAYERS; (D) MEANS FOR SUPPLYING GAS TO ALL OF SAID INTERCONNECTED CHANNELS, AND (E) MEANS FOR MAINTAINING SAID GAS WITHIN SAID INTERCONNECTED CHANNELS AT A PRESSURE SUBSTANTIALLY EQUAL TO SAID SURROUNDING WATER PRESSURE.
Claim 2
Dependent Claim
140 words
A PROTECTIVE SUIT FOR ALLOWING THE WEARER THEREOF TO OPERATE IN WATER WHEREIN THE SURROUNDING WATER PRESSURE IS ABOVE ATMOSPHERIC COMPRISING, (A) A FIRST SMOOTH FLEXIBLE LAYER, AN OUTER SURFACE OF WHICH IS IN CONTACT WITH THE WEARER; (B) A SECOND SMOOTH FLEXIBLE WATER IMPERMEABLE LAYER COMPLETELY SURROUNDING AND SPACED APART FROM SAID FIRST SMOOTH FLEXIBLE LAYER, AN OUTER SURFACE OF WHICH IS IN CONTACT WITH THE WATER; (C) THE SPACE BETWEEN SAID FIRST AND SECOND LAYERS BEING SUBSTANTIALLY OCCUPIED BY A SOFT RUBBER-LIKE PLIANT MATERIAL INCLUDING A PLURALITY OF INTERCONNECTED CHANNELS THERETHROUGH ARRANGED TO FORM A CLOSED GAS CIRCUIT BETWEEN SAID FIRST AND SECOND SMOOTH FLEXIBLE LAYERS; (D) MEANS FOR SUPPLYING GAS TO ALL OF SAID INTERCONNECTED CHANNELS, AND (E) MEANS FOR MAINTAINING SAID GAS WITHIN SAID INTERCONNECTED CHANNELS AT A PRESSURE SUBSTANTIALLY EQUAL TO SAID SURROUNDING WATER PRESSURE.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |