US5420830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chess clock
Assignee: United States, CHESS FEDERATION AKA US CHESS FEDERATION
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Filing: 1994-03-10
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Granted: 1995-05-30
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Expires: 2014-03-10
Abstract
Abstract A clock, especially suitable for playing the game of chess, includes the standard two clock face system with an activation button for each player. A delay feature is included so that there is a delay between the time the activation button is pressed and the time that the activated clock actually commences movement. The benefit of the clock is to reduce the likelihood that a player with positional and/or material superiority will lose a match solely because of the expiration of time on that player's time clock.
Inventors
- 👤 Frank A. Camaratta, Jr.
- 👤 William Goichberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:10
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/22; G07C1/28; G04; G04F; G04F10/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
168 words
A chess clock for timing a chess match, said chess clock including: (a) a first clock means and a second clock means, the clock means being adapted to run independently of each other; (b) activation means for each of said clock means, each activation means having an operative and an inoperative position, one said activation means in its operative position activating the first clock means and deactivating the second clock means and the other said activation means in its operative position activating the second clock means while deactivating the first clock means, the two said activation means being interconnected so that movement of one activation means into its operative position simultaneously moves the other to its inoperative position; and (c) delay means associated with each one of said clock means, said delay means delaying the start of activation of the clock means with which it is associated for a preselected period of time after the activation means which activates that clock means is moved into the operative position.
Claim 2
Dependent Claim
168 words
A chess clock for timing a chess match, said chess clock including: (a) a first clock means and a second clock means, the clock means being adapted to run independently of each other; (b) activation means for each of said clock means, each activation means having an operative and an inoperative position, one said activation means in its operative position activating the first clock means and deactivating the second clock means and the other said activation means in its operative position activating the second clock means while deactivating the first clock means, the two said activation means being interconnected so that movement of one activation means into its operative position simultaneously moves the other to its inoperative position; and (c) delay means associated with each one of said clock means, said delay means delaying the start of activation of the clock means with which it is associated for a preselected period of time after the activation means which activates that clock means is moved into the operative position.
Claim 3
Dependent Claim
19 words
The chess clock of claim 1 wherein the period of delay is from about 1 to about 9 seconds.
Claim 4
Dependent Claim
19 words
The chess clock of claim 1 wherein the period of delay is from about 3 to about 6 seconds.
Claim 5
Dependent Claim
22 words
The chess clock of claim 1 wherein the delay means is effective to delay the start of each of the clock means.
Claim 6
Dependent Claim
168 words
A chess clock for timing a chess match, said chess clock including: (a) a first clock means and a second clock means, the clock means being adapted to run independently of each other; (b) activation means for each of said clock means, each activation means having an operative and an inoperative position, one said activation means in its operative position activating the first clock means and deactivating the second clock means and the other said activation means in its operative position activating the second clock means while deactivating the first clock means, the two said activation means being interconnected so that movement of one activation means into its operative position simultaneously moves the other to its inoperative position; and (c) delay means associated with at least one said clock means, said delay means delaying the start of activation of the clock means with which it is associated for a preselected period of time after the activation means which activates that clock means is moved into the operative position.
Claim 7
Dependent Claim
168 words
A chess clock for timing a chess match, said chess clock including: (a) a first clock means and a second clock means, the clock means being adapted to run independently of each other; (b) activation means for each of said clock means, each activation means having an operative and an inoperative position, one said activation means in its operative position activating the first clock means and deactivating the second clock means and the other said activation means in its operative position activating the second clock means while deactivating the first clock means, the two said activation means being interconnected so that movement of one activation means into its operative position simultaneously moves the other to its inoperative position; and (c) delay means associated with at least one said clock means, said delay means delaying the start of activation of the clock means with which it is associated for a preselected period of time after the activation means which activates that clock means is moved into the operative position.
Claim 8
Dependent Claim
19 words
The chess clock of claim 5 wherein the period of delay is from about 1 to about 9 seconds.
Claim 9
Dependent Claim
19 words
The chess clock of claim 5 wherein the period of delay is from about 3 to about 6 seconds.
Claim 10
Dependent Claim
22 words
The chess clock of claim 5 wherein the delay means is effective to delay the start of each of the clock means.
References Cited (Backward Citations)
US4062180A
Cited
US4884255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-29 | 1998-11-28 | 1999-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |