Patent US3152344A successfully refreshed from Google Patents.
US3152344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life preserver
Assignee: Individual
•
Filing: 1963-02-15
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Granted: 1964-10-13
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Expires: 1983-02-15
Abstract
No abstract record available.
Inventors
- 👤 Matthew I Radnofsky
- 👤 Glenn A Shewmake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:19
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/11; B63C9/125; B63C9/1255; B63C9/13; B63C9/15; B63C9/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN INFLATABLE LIFE VEST FOR BUOYANTLY SUPPORTING A PERSON IN WATER COMPRISING: AN ELONGATE INFLATABLE STRUCTURE HAVING AN ELONGATE CENTRAL PORTION AND A PAIR OF CURVED END PORTIONS CONNECTING INTEGRALLY WITH SAID CENTRAL PORTION, EACH SAID CURVED END PORTION DEFINING A SUBSTANTIALLY SPIRAL LOOP; MEANS ATTACHED INTERNALLY OF SAID ELONGATE INFLATABLE STRUCTURE FOR BENDING SAID STRUCTURE UPON INFLATION AT THE JUNCTIONS OF SAID CENTRAL PORTION AND SAID CURVED END PORTIONS WHEREBY SAID LIFE VEST ASSUMES THE CONFIGURATION OF A RAM''S HORNS WITH SAID END PORTIONS BEING COILED ABOUT AN AXIS WHICH IS SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID CENTRAL PORTION WHEREBY SAID LIFE VEST IS ADAPTED TO BE FITTED TO A PERSON''S BODY WITH THE CENTRAL PORTION DISPOSED ACROSS THE CHEST AND THE CURVED END PORTIONS EXTENDING UNDER THE ARMPITS WITH THE ARMS EXTENDING THROUGH THE LOOPS DEFINED BY SAID CURVED END PORTIONS TO THEREBY PROVIDE BUOYANT SUPPORT FOR SAID PERSON AND TO CLING TO SAID PERSON WITHOUT THE NEED OF
Claim 2
Dependent Claim
163 words
AN INFLATABLE LIFE VEST FOR BUOYANTLY SUPPORTING A PERSON IN WATER COMPRISING: AN ELONGATE INFLATABLE STRUCTURE HAVING AN ELONGATE CENTRAL PORTION AND A PAIR OF CURVED END PORTIONS CONNECTING INTEGRALLY WITH SAID CENTRAL PORTION, EACH SAID CURVED END PORTION DEFINING A SUBSTANTIALLY SPIRAL LOOP; MEANS ATTACHED INTERNALLY OF SAID ELONGATE INFLATABLE STRUCTURE FOR BENDING SAID STRUCTURE UPON INFLATION AT THE JUNCTIONS OF SAID CENTRAL PORTION AND SAID CURVED END PORTIONS WHEREBY SAID LIFE VEST ASSUMES THE CONFIGURATION OF A RAM''S HORNS WITH SAID END PORTIONS BEING COILED ABOUT AN AXIS WHICH IS SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF SAID CENTRAL PORTION WHEREBY SAID LIFE VEST IS ADAPTED TO BE FITTED TO A PERSON''S BODY WITH THE CENTRAL PORTION DISPOSED ACROSS THE CHEST AND THE CURVED END PORTIONS EXTENDING UNDER THE ARMPITS WITH THE ARMS EXTENDING THROUGH THE LOOPS DEFINED BY SAID CURVED END PORTIONS TO THEREBY PROVIDE BUOYANT SUPPORT FOR SAID PERSON AND TO CLING TO SAID PERSON WITHOUT THE NEED OF
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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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |