Patent US559122A successfully refreshed from Google Patents.
Patent US3157148A successfully refreshed from Google Patents.
US3157148A
Expired / Lapsed
US
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Driving force indicator for sailboats
Assignee: Individual
•
Filing: 1961-09-25
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Granted: 1964-11-17
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Expires: 1981-09-25
Abstract
No abstract record available.
Inventors
- 👤 James H Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:12
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2206; B; B63; B63B; B63B15/00; B63B15/0083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE COMBINATION COMPRISING A SAIL BOAT HAVING AT LEAST ONE MAST AND A SAIL CARRIED THEREBY, SAID SAIL TRANSMITTING A FORWARD DRIVING FORCE TO SAID BOAT THROUGH SAID MAST, A STRAIN GAUGE POSITIONED ON SAID MAST SO AS TO DETECT THE MAGNITUDE OF THE FORWARD COMPONENT OF THE STRAIN IMPOSED ON SAID MAST BY SAID SAIL, AND MEANS CONNECTED TO SAID STRAIN GAUGE FOR INDICATING THE MAGNITUDE OF SAID FORWARD COMPONENT OF STRAIN.
Claim 2
Dependent Claim
73 words
THE COMBINATION COMPRISING A SAIL BOAT HAVING AT LEAST ONE MAST AND A SAIL CARRIED THEREBY, SAID SAIL TRANSMITTING A FORWARD DRIVING FORCE TO SAID BOAT THROUGH SAID MAST, A STRAIN GAUGE POSITIONED ON SAID MAST SO AS TO DETECT THE MAGNITUDE OF THE FORWARD COMPONENT OF THE STRAIN IMPOSED ON SAID MAST BY SAID SAIL, AND MEANS CONNECTED TO SAID STRAIN GAUGE FOR INDICATING THE MAGNITUDE OF SAID FORWARD COMPONENT OF STRAIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |