US3070818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life saving device
Assignee: Individual
•
Filing: 1962-03-14
•
Granted: 1963-01-01
•
Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Willis A Fairchild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:53
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/13; B63C9/15; B63C9/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
AN INFLATABLE LIFE SAVING DEVICE, COMPRISING (A) A CASING HAVING A WALL COMPARTMENTING SAID CASING INTO FIRST AND SECOND CHAMBERS, (B) SAID SECOND CHAMBER BEING ADAPTED TO HOLD GAS UNDER PRESSURE AND SAID FIRST CHAMBER HOUSING AN INFLATABLE BAG, (C) SAID WALL HAVING A PASSAGE INTERCONNECTING SAID CHAMBERS, (D) MEANS CLOSING SAID PASSAGE, (E) AN OPEN ENDED VALVE CARRIED IN SAID MEANS AND HAVING ONE OF ITS ENDS NORMALLY CARRIED WITHIN THE EXTENT OF SAID MEANS AND ITS OTHER END WITHIN THE EXTENT OF THE INTERIOR OF SAID BAG, AND (F) A FLEXIBLE COVER REMOVABLY MOUNTED ON SAID CASING OVER SAID FIRST CHAMBER AND MOVABLE INTO SAID FIRST CHAMBER TO MOVE SAID VALVE THROUGH SAID MEANS TO DISPOSE SAID ONE VALVE END IN SAID SECOND CHAMBER TO PERMIT THE GAS IN SAID SECOND CHAMBER TO MOVE THROUGH SAID VALVE TO INFLATE SAID BAG, (G) SAID BAG UPON INFLATION FORCING SAID COVER FROM SAID CASING WHEREBY SUBSTANTIALLY ALL OF SAID BAG WILL BE DISPOSED OUTSIDE THE EXTENT OF THE CASING.
Claim 2
Dependent Claim
169 words
AN INFLATABLE LIFE SAVING DEVICE, COMPRISING (A) A CASING HAVING A WALL COMPARTMENTING SAID CASING INTO FIRST AND SECOND CHAMBERS, (B) SAID SECOND CHAMBER BEING ADAPTED TO HOLD GAS UNDER PRESSURE AND SAID FIRST CHAMBER HOUSING AN INFLATABLE BAG, (C) SAID WALL HAVING A PASSAGE INTERCONNECTING SAID CHAMBERS, (D) MEANS CLOSING SAID PASSAGE, (E) AN OPEN ENDED VALVE CARRIED IN SAID MEANS AND HAVING ONE OF ITS ENDS NORMALLY CARRIED WITHIN THE EXTENT OF SAID MEANS AND ITS OTHER END WITHIN THE EXTENT OF THE INTERIOR OF SAID BAG, AND (F) A FLEXIBLE COVER REMOVABLY MOUNTED ON SAID CASING OVER SAID FIRST CHAMBER AND MOVABLE INTO SAID FIRST CHAMBER TO MOVE SAID VALVE THROUGH SAID MEANS TO DISPOSE SAID ONE VALVE END IN SAID SECOND CHAMBER TO PERMIT THE GAS IN SAID SECOND CHAMBER TO MOVE THROUGH SAID VALVE TO INFLATE SAID BAG, (G) SAID BAG UPON INFLATION FORCING SAID COVER FROM SAID CASING WHEREBY SUBSTANTIALLY ALL OF SAID BAG WILL BE DISPOSED OUTSIDE THE EXTENT OF THE CASING.
References Cited (Backward Citations)
US2687541A
Cited
US2979740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |