High moment of inertia putter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 23, 2006
Issued Date -
N/A
app pub date -
Feb 4, 2004
filing date -
Jan 10, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A golf putter head has a generally triangular shape where a ball-striking leading wall has a first breadth greater than a second breadth of a trailing wall. The leading wall and trailing wall are interconnected at their respective opposite ends by sidewalls that converge toward one another and define a cavity having a trapezoidal shape. The center of gravity of the golf putter head is closer to the trailing wall than the leading wall so that a moment of inertia is generated that reduces the effects of missing a sweet spot on the leading wall during a putt. In a second embodiment, the trailing wall is weighted to move the center of gravity still closer to the trailing wall. In a third embodiment, a web interconnects the leading and trailing walls along a longitudinal axis of the golf putter head, dividing the cavity into two equal-sized cavities.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MACGREGOR GOLF COMPANY | 1000 PECAN GROVE DRIVE ALBANY GA 31701 | |
MACGREGOR GOLF (NORTH AMERICA) INC | 1000 PECAN GROVE DRIVE ALBANY GA 31701 | |
GREG NORMAN COLLECTION INC (FORMERLY KNOWN AS 101 ACQUISITION INC ) | 1000 PECAN GROVE DRIVE ALBANY GA 31701 | |
GREG NORMAN COLLECTION CANADA ULC | 1000 PECAN GROVE DRIVE ALBANY GA 31701 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Grace, Robert M | St. Pete Beach, FL | 30 | 800 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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