Patent US4940247A successfully refreshed from Google Patents.
US4940247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bat with reverse conical grip
Assignee: BOMBAT SPORT Inc
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Filing: 1989-03-22
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Granted: 1990-07-10
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Expires: 2009-03-22
Abstract
Abstract A hollow metallic baseball bat is disclosed which includes a large diameter impact section, a small diameter gripping section and a transition section therebetween. The lower end of the small diameter gripping section is configured to provide a reverse conical grip whereby the smaller two fingers of the lower hand of the batter can more tightly grip the bat. In modifications of the reverse conical grip, the lower end of the gripping section can be formed of modified oval configuration or modified elliptical configuration to more comfortably tightly receive the lower hand of the batter.
Inventors
- 👤 John A. Magadini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:55
CPC Classifications
A; A63; A63B; A63B60/00; A63B60/06; A63B59/00; A63B59/50; A63B59/51; A63B60/08; A63B60/10; A63B2102/00; A63B2102/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
161 words
A hollow metallic baseball bat comprising: a bat body having a generally cylindrical, upper, impact portion of a first, large diameter, a generally cylindrical, lower, handle portion of a second, smaller diameter and a transition zone intermediate the impact portion and the handle portion, the impact portion terminating upwardly in a closed end and the handle portion terminating downwardly in an enlarged knob, the knob having a diameter greater than the diameter of the handle portion; and the handle portion being subdivided into an upper area adjacent to the transition zone, the upper area having uniform diameter and a lower area adjacent to the knob, the lower area having non-uniform diameter, the lower area of non-uniform diameter having an upper, large diameter section and a lower, small diameter section, the lower, small diameter section terminating downwardly at the said knob and the upper, large diameter section of the lower area terminating upwardly at the said handle portion uniform diameter upper area.
Claim 2
Dependent Claim
161 words
A hollow metallic baseball bat comprising: a bat body having a generally cylindrical, upper, impact portion of a first, large diameter, a generally cylindrical, lower, handle portion of a second, smaller diameter and a transition zone intermediate the impact portion and the handle portion, the impact portion terminating upwardly in a closed end and the handle portion terminating downwardly in an enlarged knob, the knob having a diameter greater than the diameter of the handle portion; and the handle portion being subdivided into an upper area adjacent to the transition zone, the upper area having uniform diameter and a lower area adjacent to the knob, the lower area having non-uniform diameter, the lower area of non-uniform diameter having an upper, large diameter section and a lower, small diameter section, the lower, small diameter section terminating downwardly at the said knob and the upper, large diameter section of the lower area terminating upwardly at the said handle portion uniform diameter upper area.
Claim 3
Dependent Claim
21 words
The baseball bat of claim 1 wherein the lower area is shaped in longitudinal cross section in a truncated conical configuration.
Claim 4
Dependent Claim
24 words
The baseball bat of claim 1 wherein the lower area is shaped in a longitudinal cross section in a modified oval cross sectional configuration.
Claim 5
Dependent Claim
23 words
The baseball bat of claim 1 wherein the lower area is shaped in longitudinal cross section in a modified elliptical cross sectional configuration.
Claim 6
Dependent Claim
25 words
The baseball bat of claim 1 wherein the upper area of the handle portion is longer than the said lower area of the handle portion.
Claim 7
Dependent Claim
41 words
The baseball bat of claim 1 wherein the ratio of length of the said lower, non-uniform diameter area of the handle portion to the length of the upper, uniform diameter area of the handle portion is at least two to ten.
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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) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |