US3308494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable life preserver
Assignee: Individual
•
Filing: 1964-11-30
•
Granted: 1967-03-14
•
Expires: 1984-11-30
Abstract
No abstract record available.
Inventors
- 👤 Robert J Licher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:51
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/24; B63C9/08; B63C9/13; B63C9/15; B63C9/155; B63C2009/133; Y; Y10; Y10T; Y10T137/00; Y10T137/1624
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A LIFE PRESERVER COMPRISING AN INFLATABLE SUPPORT BLADDER, A GAS INLET ON THE BLADDER, A COMPRESSED GAS CONTAINER, A VALVE BODY ADAPTED TO CONNECT TO THE GAS CONTAINER, A VALVE PORT WITHIN THE BODY, A VALVE MEMBER ADAPTED TO SEAT IN SEALING RELATIONSHIP WITH THE PORT SO AS TO PRECLUDE FLOW BETWEEN THE CONTAINER AND THE GAS INLET, BIAS MEANS URGING THE VALVE MEMBER OUT OF CONTACT WITH THE VALVE PORT, PERIPHERALLY RESTRICTIVE MEANS ADAPTED TO HOLD THE VALVE MEMBER IN SEALING RELATIONSHIP WITH THE VALVE PORT, SAID RESTRICTIVE MEANS BEING WATER SENSITIVE SUCH THAT CONTACT WITH WATER RELAXES THE RESTRICTION ON THE VALVE MEMBER, AND A CHAMBER ADAPTED TO RECEIVE THE VALVE MEMBER WHEN THE BIAS MEANS URGES THE VALVE OUT OF SEALING RELATIONSHIP WITH THE VALVE PORT, SAID CHAMBER CONDUCTING COMPRESSED GAS FROM THE CONTAINER TO THE GAS INLET OF THE INFLATABLE BLADDER.
Claim 2
Dependent Claim
145 words
A LIFE PRESERVER COMPRISING AN INFLATABLE SUPPORT BLADDER, A GAS INLET ON THE BLADDER, A COMPRESSED GAS CONTAINER, A VALVE BODY ADAPTED TO CONNECT TO THE GAS CONTAINER, A VALVE PORT WITHIN THE BODY, A VALVE MEMBER ADAPTED TO SEAT IN SEALING RELATIONSHIP WITH THE PORT SO AS TO PRECLUDE FLOW BETWEEN THE CONTAINER AND THE GAS INLET, BIAS MEANS URGING THE VALVE MEMBER OUT OF CONTACT WITH THE VALVE PORT, PERIPHERALLY RESTRICTIVE MEANS ADAPTED TO HOLD THE VALVE MEMBER IN SEALING RELATIONSHIP WITH THE VALVE PORT, SAID RESTRICTIVE MEANS BEING WATER SENSITIVE SUCH THAT CONTACT WITH WATER RELAXES THE RESTRICTION ON THE VALVE MEMBER, AND A CHAMBER ADAPTED TO RECEIVE THE VALVE MEMBER WHEN THE BIAS MEANS URGES THE VALVE OUT OF SEALING RELATIONSHIP WITH THE VALVE PORT, SAID CHAMBER CONDUCTING COMPRESSED GAS FROM THE CONTAINER TO THE GAS INLET OF THE INFLATABLE BLADDER.
References Cited (Backward Citations)
US1590151A
Cited
US3092853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |