US3225460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amusement and educational device
Assignee: Individual
•
Filing: 1962-06-06
•
Granted: 1965-12-28
•
Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 Theodore C Randell
- 👤 Thomas S Eldridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:26
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/24; A63F2009/2401; A63F2009/2402; A63F2009/2448; A63F2009/245; A63F2009/2451; A63F2009/247; A63F2009/2472; A63F2009/2483; A63F2009/2492; A63F2009/2494
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN AN EDUCATIONAL AND AMUSEMENT APPARATUS AN ELECTRICAL CIRCUIT ARRANGEMENT HAVING A CONTROL MEANS AND AN ELECTRICAL ENERGY SOURCE AND COMPRISING A PLURALITY OF STAGES CONNECTED IN PARALLEL, EACH STAGE COMPRISING AT LEAST TWO GROUPS, EACH GROUP COMPRISING FIRST AND SECOND ELECTROCAL DEVICES AND A SINGLE POLE, DOUBLE THROW CONTACT SWITCH, SAID CONTROL MEANS CONNECTING IN SERIES SAID ENERGY SOURCE WITH SAID FIRST ELECTRICAL DEVICE AND SAID CONTACT SWITCH OF EACH GROUP AND ALTERNATIVELY CONNECTING IN SERIES SAID ENERGY SOURCE WITH SAID SECOND ELECTRICAL DEVICE AND SAID CONTACT SWITCH OF EACH GROUP, SAID CONTACT SWITCH OF EACH GROUP BEING ARRANGED IN SERIES WITH A CONTACT SWITCH OF ANOTHER GROUP IN ITS STAGE AND COMPRISING MEANS FOR RESTRICTING ONLY ONE GROUP IN EACH STAGE TO BE ACTIVATED AT ANY SPECIFIC TIME.
Claim 2
Dependent Claim
130 words
IN AN EDUCATIONAL AND AMUSEMENT APPARATUS AN ELECTRICAL CIRCUIT ARRANGEMENT HAVING A CONTROL MEANS AND AN ELECTRICAL ENERGY SOURCE AND COMPRISING A PLURALITY OF STAGES CONNECTED IN PARALLEL, EACH STAGE COMPRISING AT LEAST TWO GROUPS, EACH GROUP COMPRISING FIRST AND SECOND ELECTROCAL DEVICES AND A SINGLE POLE, DOUBLE THROW CONTACT SWITCH, SAID CONTROL MEANS CONNECTING IN SERIES SAID ENERGY SOURCE WITH SAID FIRST ELECTRICAL DEVICE AND SAID CONTACT SWITCH OF EACH GROUP AND ALTERNATIVELY CONNECTING IN SERIES SAID ENERGY SOURCE WITH SAID SECOND ELECTRICAL DEVICE AND SAID CONTACT SWITCH OF EACH GROUP, SAID CONTACT SWITCH OF EACH GROUP BEING ARRANGED IN SERIES WITH A CONTACT SWITCH OF ANOTHER GROUP IN ITS STAGE AND COMPRISING MEANS FOR RESTRICTING ONLY ONE GROUP IN EACH STAGE TO BE ACTIVATED AT ANY SPECIFIC TIME.
References Cited (Backward Citations)
US1911971A
Cited
US2492571A
Cited
US2664665A
Cited
US3007150A
Cited
US2880408A
Cited
US2970386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |