Patent US3925480A successfully refreshed from Google Patents.
Patent US753413A successfully refreshed from Google Patents.
Patent US2106579A successfully refreshed from Google Patents.
Patent US3295487A successfully refreshed from Google Patents.
US3295487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrofoil sailboat
Assignee: Individual
•
Filing: 1965-09-23
•
Granted: 1967-01-03
•
Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 Smith Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:22
CPC Classifications
B; B63; B63B; B63B39/00; B63B39/06; B63B39/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A SAILING CRAFT COMPRISING: FIRST, SECOND AND THIRD HYDROFOIL MEANS EACH HAVING A POSITIVE STATIC BUOYANCY CHARACTERISTIC, AND COLLECTIVELY HAVING SUFFICIENT DISPLACEMENT TO PROVIDE FLOTATION FOR SAID SAILING CRAFT UNDER STATIC CONDITIONS; FUSELAGE MEANS SUPPORTED AT A FIRST END BY SAID FIRST HYDROFOIL MEANS AND AT THE OTHER END BY SAID SECOND HYDROFOIL MEANS; RIGID AIRFOIL MEANS SUPPORTED ON, AND EXTENDING UPWARDLY FROM, SAID THIRD HYDROFOIL MEANS;
Claim 2
Dependent Claim
67 words
A SAILING CRAFT COMPRISING: FIRST, SECOND AND THIRD HYDROFOIL MEANS EACH HAVING A POSITIVE STATIC BUOYANCY CHARACTERISTIC, AND COLLECTIVELY HAVING SUFFICIENT DISPLACEMENT TO PROVIDE FLOTATION FOR SAID SAILING CRAFT UNDER STATIC CONDITIONS; FUSELAGE MEANS SUPPORTED AT A FIRST END BY SAID FIRST HYDROFOIL MEANS AND AT THE OTHER END BY SAID SECOND HYDROFOIL MEANS; RIGID AIRFOIL MEANS SUPPORTED ON, AND EXTENDING UPWARDLY FROM, SAID THIRD HYDROFOIL MEANS;
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |