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US3184187A
Expired / Lapsed
US
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Retractable airfoils and hydrofoils
Assignee: Individual
•
Filing: 1963-05-10
•
Granted: 1965-05-18
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Isaac Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:37
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/46; B64C27/473; B64C27/50; B64C3/00; B64C3/38; B64C3/54; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN FLATABLE FLUIDFOIL COMBINED WITH FLUIDFOIL STORAGE MEANS FROM WHICH SAID INFLATABLE FLUIDFOIL MAY BE EXTENDED AND RETRACTED IN A SUBSTANTIALLY RIGID STATE, SAID INFLATABLE FLUIDFOIL AT LEAST INCLUDING TWO RESILIENT SHEETS WHICH ARE PREDOMINANTLY FLAT AND PARALLEL TO EACH OTHER WHEN SAID INFLATABLE FLUIDFOIL IS IN SAID FLUIDFOIL STORAGE MEANS AND DISHED OUTWARDLY FROM EACH OTHER WHEN SAID INFLATABLE FLUIDFOIL IS INFLATED, EDGE JOINING MEANS FOR JOINING OPPOSITE EDGES OF SAID RESILIENT SHEETS, COLLAPSIBLE SPAR MEANS SITUATED BETWEEN SAID RESILIENT SHEETS AND ORIENTED PARALLEL TO THE LONGITUDINAL AXIS OF SAID INFLATABLE FLUIDFOIL, SAID FLUIDFOIL STORAGE MEANS AT LEAST INCLUDING A REEL ON WHICH SAID INFLATABLE FLUIDFOIL MAY BE REELED AND TO WHICH IT IS ATTACHED, HOUSING MEANS FOR SUPPORTING SAID REEL, FLUIDFOIL INFLATING AND DEFLATING MEANS, AND REEL ROTATING MEANS WHEREBY SAID INFLATABLE FLUIDFOIL MAY BE EXTENDED AND RETRACTED FROM SAID FLUIDFOIL STORAGE MEANS.
Claim 2
Dependent Claim
145 words
IN FLATABLE FLUIDFOIL COMBINED WITH FLUIDFOIL STORAGE MEANS FROM WHICH SAID INFLATABLE FLUIDFOIL MAY BE EXTENDED AND RETRACTED IN A SUBSTANTIALLY RIGID STATE, SAID INFLATABLE FLUIDFOIL AT LEAST INCLUDING TWO RESILIENT SHEETS WHICH ARE PREDOMINANTLY FLAT AND PARALLEL TO EACH OTHER WHEN SAID INFLATABLE FLUIDFOIL IS IN SAID FLUIDFOIL STORAGE MEANS AND DISHED OUTWARDLY FROM EACH OTHER WHEN SAID INFLATABLE FLUIDFOIL IS INFLATED, EDGE JOINING MEANS FOR JOINING OPPOSITE EDGES OF SAID RESILIENT SHEETS, COLLAPSIBLE SPAR MEANS SITUATED BETWEEN SAID RESILIENT SHEETS AND ORIENTED PARALLEL TO THE LONGITUDINAL AXIS OF SAID INFLATABLE FLUIDFOIL, SAID FLUIDFOIL STORAGE MEANS AT LEAST INCLUDING A REEL ON WHICH SAID INFLATABLE FLUIDFOIL MAY BE REELED AND TO WHICH IT IS ATTACHED, HOUSING MEANS FOR SUPPORTING SAID REEL, FLUIDFOIL INFLATING AND DEFLATING MEANS, AND REEL ROTATING MEANS WHEREBY SAID INFLATABLE FLUIDFOIL MAY BE EXTENDED AND RETRACTED FROM SAID FLUIDFOIL STORAGE MEANS.
References Cited (Backward Citations)
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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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |