Patent US3143351A successfully refreshed from Google Patents.
US3143351A
Expired / Lapsed
US
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Tethered golf ball on a self-locking rotatable spool
Assignee: Individual
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Filing: 1962-04-30
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Granted: 1964-08-04
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Robert R Bertrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:01
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0073; A63B69/0079; A63B71/00; A63B71/02; A63B71/023; A63B2071/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A GOLF PRACTICE DEVICE COMPRISING: (A) A BASE (B) A FIXED STANDARD ON SAID BASE, (C) A CAP ON THE UPPER END OF THE STANDARD, (D) A SPOOL ROTATIONALLY AND LONGITUDINALLY MOVABLE ON SAID STANDARD, (E) A CLUTCH TO RELEASABLY HOLD THE SPOOL NON-ROTATIONAL ON THE STANDARD AND RELEASABLE FOR FREEING THE SPOOL TO ROTATE FREELY ON THE STANDARD UPON ENDWISE MOVEMENT OF THE SPOOL TOWARD THE CAP ON THE STANDARD, SAID CLUTCH COMPRISING A PIN EXTENDING THROUGH SAID STANDARD AND NOTCHES ON ONE END OF THE SPOOL, (F) A BALL, (G) CORD MEANS TO HOLD THE BALL CAPTIVE TO THE SPOOL AND ADAPTED TO WRAP AROUND SAID SPOOL WHEN LOCKED AND WHEN THE BALL IS STROKED AND FLIES OUT CENTRIFUGALLY, AND (H) A CENTRAL EARTH-PENETRABLE BASE-LOCATING MEMBER EXTENDING FROM THE STANDARD AND ATTACHED TO SAID STANDARD BY SAID PIN.
Claim 2
Dependent Claim
140 words
A GOLF PRACTICE DEVICE COMPRISING: (A) A BASE (B) A FIXED STANDARD ON SAID BASE, (C) A CAP ON THE UPPER END OF THE STANDARD, (D) A SPOOL ROTATIONALLY AND LONGITUDINALLY MOVABLE ON SAID STANDARD, (E) A CLUTCH TO RELEASABLY HOLD THE SPOOL NON-ROTATIONAL ON THE STANDARD AND RELEASABLE FOR FREEING THE SPOOL TO ROTATE FREELY ON THE STANDARD UPON ENDWISE MOVEMENT OF THE SPOOL TOWARD THE CAP ON THE STANDARD, SAID CLUTCH COMPRISING A PIN EXTENDING THROUGH SAID STANDARD AND NOTCHES ON ONE END OF THE SPOOL, (F) A BALL, (G) CORD MEANS TO HOLD THE BALL CAPTIVE TO THE SPOOL AND ADAPTED TO WRAP AROUND SAID SPOOL WHEN LOCKED AND WHEN THE BALL IS STROKED AND FLIES OUT CENTRIFUGALLY, AND (H) A CENTRAL EARTH-PENETRABLE BASE-LOCATING MEMBER EXTENDING FROM THE STANDARD AND ATTACHED TO SAID STANDARD BY SAID PIN.
References Cited (Backward Citations)
US649190A
Cited
US1091985A
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US1352647A
Cited
US1722848A
Cited
US1847570A
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US2080653A
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |