US3246350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Principle for safeguarding the possibility for individual persons to swim and breathe in water
Assignee: Individual
•
Filing: 1964-02-27
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Granted: 1966-04-19
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Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Pollmann Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:57
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/13; B63C9/15; B63C9/155; B63C11/00; B63C11/02; B63C11/12; B63C11/16; B63C2009/133; B63C2011/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A LIFE-SAVING DEVICE, COMPRISING A BALLOON-SHAPED ELASTIC ENVELOPE ADAPTED TO ENCLOSE THE HEAD OF A WEARER AND TO CONTAIN AIR BREATHED OUT BY THE WEARER, SAID BREATHED OUT AIR SERVING AS A RESERVE OF BREATHING AIR AND SUPPLYING HYDROSTATIC BUOYANCY TO THE WEARER IN WATER, A BREATHING MASK LOCATED IN SAID ENVELOPE AND ADAPTED TO ENCLOSE THE BREATHING ORGANS OF THE WEARER, A SUCTION HOSE CONNECTED TO SAID BREATHING MASK, A NONE-WAY VALVE LOCATED ON TOP OF SAID ENVELOPE AND CONNECTED TO SAID HOSE FOR TRANSMITTING AIR FROM THE OUTSIDE SUCKED IN BY THE WEARER THROUGH SAID HOSE AND INTO SAID MASK BUT PREVENTING THE ESCAPE OF AIR FROM THE INTERIOR OF SAID ENVELOPE, AND AN ELASTIC STRAP CONNECTED TO SAID ENVELOPE AND ADAPTED TO ENCLOSE THE NECK OF THE WEARER, SAID ELASTIC STRAP CONSTITUTING AN EXCESS PRESSURE VALVE PERMITTING THE ESCAPE OF SOME OF THE AIR FROM THE INTERIOR OF SAID ENVELOPE.
Claim 2
Dependent Claim
153 words
A LIFE-SAVING DEVICE, COMPRISING A BALLOON-SHAPED ELASTIC ENVELOPE ADAPTED TO ENCLOSE THE HEAD OF A WEARER AND TO CONTAIN AIR BREATHED OUT BY THE WEARER, SAID BREATHED OUT AIR SERVING AS A RESERVE OF BREATHING AIR AND SUPPLYING HYDROSTATIC BUOYANCY TO THE WEARER IN WATER, A BREATHING MASK LOCATED IN SAID ENVELOPE AND ADAPTED TO ENCLOSE THE BREATHING ORGANS OF THE WEARER, A SUCTION HOSE CONNECTED TO SAID BREATHING MASK, A NONE-WAY VALVE LOCATED ON TOP OF SAID ENVELOPE AND CONNECTED TO SAID HOSE FOR TRANSMITTING AIR FROM THE OUTSIDE SUCKED IN BY THE WEARER THROUGH SAID HOSE AND INTO SAID MASK BUT PREVENTING THE ESCAPE OF AIR FROM THE INTERIOR OF SAID ENVELOPE, AND AN ELASTIC STRAP CONNECTED TO SAID ENVELOPE AND ADAPTED TO ENCLOSE THE NECK OF THE WEARER, SAID ELASTIC STRAP CONSTITUTING AN EXCESS PRESSURE VALVE PERMITTING THE ESCAPE OF SOME OF THE AIR FROM THE INTERIOR OF SAID ENVELOPE.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |