Patent US4840383A successfully refreshed from Google Patents.
US4840383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated dart
Assignee: Individual
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Filing: 1987-10-29
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Granted: 1989-06-20
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Expires: 2007-10-29
Abstract
Abstract An illuminated dart contains a small battery and a light producing element. The light producing element may consist of a small bulb or a LED. Fiber optics may be received within the hollow transparent or translucent shaft of the dart for illuminating the transparent or translucent tail fins of the dart. The dart includes a switch for turning the light source element on or off. In a second embodiment of the invention, a dart board is provided with electric light bulbs in each sector of the dart board for illuminating that sector when contacts in that sector are activated by a thrown dart.
Inventors
- 👤 James W. Lombardo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:26
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/362; F42B12/40; F42B6/00; F42B6/003; Y; Y10; Y10S; Y10S273/00; Y10S273/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
An illuminated dart, comprising: a tip; a hollow conical tip section connected to said tip; a light source received within said hollow conical tip section; a battery within said hollow conical tip section; a switch on an external surface of said hollow conical tip section for selectively connecting and disconnecting said battery from said light source; a hollow shaft formed from a transparent or translucent material connected to said conical tip section; a tail section formed from a translucent or transparent material connected to said hollow shaft; tail fins formed from a transparent or translucent material on said tail section; and optical fibers in said hollow shaft for transmitting light from said light source to said tail section and said tail fins.
Claim 2
Dependent Claim
122 words
An illuminated dart, comprising: a tip; a hollow conical tip section connected to said tip; a light source received within said hollow conical tip section; a battery within said hollow conical tip section; a switch on an external surface of said hollow conical tip section for selectively connecting and disconnecting said battery from said light source; a hollow shaft formed from a transparent or translucent material connected to said conical tip section; a tail section formed from a translucent or transparent material connected to said hollow shaft; tail fins formed from a transparent or translucent material on said tail section; and optical fibers in said hollow shaft for transmitting light from said light source to said tail section and said tail fins.
Claim 3
Dependent Claim
17 words
The illuminated dart of claim 1, wherein said light source comprises at least one light emitting diode.
Claim 4
Dependent Claim
17 words
The illuminated dart of claim 1, wherein said light source comprises at least one electric light bulb.
Claim 5
Dependent Claim
75 words
An illuminated dart, comprising: tip means; hollow shaft means connected to said tip means; electrical illumination means in said shaft means; means for energizing said illumination means; tail fin means connected to said shaft means; a hollow conical tip section connected to one end of said hollow shaft means, said tip means being connected to said conical tip section; and said electrical illumination means and said energizing means received within said hollow conical tip section.
Claim 6
Dependent Claim
75 words
An illuminated dart, comprising: tip means; hollow shaft means connected to said tip means; electrical illumination means in said shaft means; means for energizing said illumination means; tail fin means connected to said shaft means; a hollow conical tip section connected to one end of said hollow shaft means, said tip means being connected to said conical tip section; and said electrical illumination means and said energizing means received within said hollow conical tip section.
Claim 7
Dependent Claim
49 words
An illuminated dart, comprising: tip means; hollow shaft means connected to said tip means; electrical illumination means in said shaft means; means for energizing said illumination means; tail fin means connected to said shaft means; and means for transmitting light from said illumination means to said tail fin means.
Claim 8
Dependent Claim
49 words
An illuminated dart, comprising: tip means; hollow shaft means connected to said tip means; electrical illumination means in said shaft means; means for energizing said illumination means; tail fin means connected to said shaft means; and means for transmitting light from said illumination means to said tail fin means.
Claim 9
Dependent Claim
19 words
The illuminated dart of claim 5, wherein said transmitting means comprises optical fibers received within said hollow shaft means.
Claim 10
Dependent Claim
17 words
The illuminated dart of claim 5, wherein said tail fin means comprises a transparent or translucent material.
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) | 1992-06-19 | 1992-12-19 | 1993-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-19 | 1996-12-19 | 1997-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-19 | 2000-12-19 | 2001-06-20 | $7700.00 | Window Closed / Lapsed |