US3291392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road race car switch track
Assignee: Eldon Industries Inc
•
Filing: 1965-03-05
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Granted: 1966-12-13
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Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 Cramer Allen Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/02; A63H18/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A ROAD RACE CAR SWITCH TRACK STRUCTURE, SAID ROAD RACE CAR SWITCH TRUCK STRUCTURE COMPRISING: A SWITCH TRACK SECTION, SAID SWITCH TRACK SECTION HAVING AN ENTRANCE SLOT AND FIRST AND SECOND EXIT SLOTS, EACH OF SAID SLOTS BEING ADAPTED TO BE OCCUPIED BY THE GUIDE SHOE ON A ROAD RACE CAR AND HAVING FIRST AND SECOND SIDE WALLS ARRANGED FOR THE GUIDANCE OF THE ROAD RACE CAR GUIDE SHOE, SAID ENTRANCE SLOT HAVING ITS WALLS FORMED AS CURVED WALLS, SAID FIRST EXIT SLOT HAVING ITS WALLS FORMED AS CURVES ALIGNED WITH SAID WALLS OF SAID ENTRANCE SLOT, SAID SECOND EXIT SLOT HAVING ITS WALLS DIRECTED TO BE TANGENT TO SAID WALLS OF SAID ENTRANCE SLOT, SAID ENTRANCE SLOT AND SAID FIRST AND SECOND EXIT SLOTS INTERSECTING EACH OTHER AT A JUNCTURE;
Claim 2
Dependent Claim
131 words
A ROAD RACE CAR SWITCH TRACK STRUCTURE, SAID ROAD RACE CAR SWITCH TRUCK STRUCTURE COMPRISING: A SWITCH TRACK SECTION, SAID SWITCH TRACK SECTION HAVING AN ENTRANCE SLOT AND FIRST AND SECOND EXIT SLOTS, EACH OF SAID SLOTS BEING ADAPTED TO BE OCCUPIED BY THE GUIDE SHOE ON A ROAD RACE CAR AND HAVING FIRST AND SECOND SIDE WALLS ARRANGED FOR THE GUIDANCE OF THE ROAD RACE CAR GUIDE SHOE, SAID ENTRANCE SLOT HAVING ITS WALLS FORMED AS CURVED WALLS, SAID FIRST EXIT SLOT HAVING ITS WALLS FORMED AS CURVES ALIGNED WITH SAID WALLS OF SAID ENTRANCE SLOT, SAID SECOND EXIT SLOT HAVING ITS WALLS DIRECTED TO BE TANGENT TO SAID WALLS OF SAID ENTRANCE SLOT, SAID ENTRANCE SLOT AND SAID FIRST AND SECOND EXIT SLOTS INTERSECTING EACH OTHER AT A JUNCTURE;
References Cited (Backward Citations)
US2664831A
Cited
US3205833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |