US3140825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tracks for electrically driven model vehicles
Assignee: Minic Ltd
•
Filing: 1961-10-24
•
Granted: 1964-07-14
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Expires: 1981-10-24
Abstract
No abstract record available.
Inventors
- 👤 Edmondson Anthony Jam Kinghorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:12
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A SECTION OF TRACK FOR AN ELECTRICALLY PROPELLED MODEL VEHICLE COMPRISING: A BASE OF ELECTRICALLY INSULATING MATERIAL HAVING A SLOT IN ONE FACE THEREOF; TWO CONDUCTING RAILS REMOVABLE MOUNTED WITHIN SAID SLOT IN CONTACT WITH THE SIDE WALLS THEREOF; AN INSULATING STRIP CO-EXTENSIVE IN LENGTH WITH SAID RAILS, DIMENSIONED TO BE A PUSH FIT BETWEEN SAID RAILS, AND POSITIONED AT THE BASE OF SAID SLOT TO URGE SAID RAILS AGAINST THE OPPOSITE SIDE WALLS OF SAID SLOT; TONGUES PROJECTING LATERALLY FROM SAID RAILS; AND MEANS DEFINING RECESSES IN THE SIDE WALLS OF SAID SLOT FOR RECEIVING SAID TONGUES WHEREBY SAID RAILS ARE
Claim 2
Dependent Claim
102 words
A SECTION OF TRACK FOR AN ELECTRICALLY PROPELLED MODEL VEHICLE COMPRISING: A BASE OF ELECTRICALLY INSULATING MATERIAL HAVING A SLOT IN ONE FACE THEREOF; TWO CONDUCTING RAILS REMOVABLE MOUNTED WITHIN SAID SLOT IN CONTACT WITH THE SIDE WALLS THEREOF; AN INSULATING STRIP CO-EXTENSIVE IN LENGTH WITH SAID RAILS, DIMENSIONED TO BE A PUSH FIT BETWEEN SAID RAILS, AND POSITIONED AT THE BASE OF SAID SLOT TO URGE SAID RAILS AGAINST THE OPPOSITE SIDE WALLS OF SAID SLOT; TONGUES PROJECTING LATERALLY FROM SAID RAILS; AND MEANS DEFINING RECESSES IN THE SIDE WALLS OF SAID SLOT FOR RECEIVING SAID TONGUES WHEREBY SAID RAILS ARE
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |