Patent US3552003A successfully refreshed from Google Patents.
US3552003A
Expired / Lapsed
US
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Method of making slot car racetracks
Assignee: Revell Inc
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Filing: 1969-01-08
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Granted: 1971-01-05
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Expires: 1989-01-08
Abstract
Abstract A UNITARY SLOT CAR RACETRACK COMPRISES A THERMOPLASTIC SUBSTRATE HAVING A CONTINUOUS SLOT OF DESIRED CONFIGURATION FORMED THEREIN. A PAIR OF TIN-COATED STEEL FOIL STRIPS ARE ADHESIVELY SECURED TO THE SUBSTRATE SURFACE ON EITHER SIDE OF THE SLOT AND EXTEND OVER THE EDGES OF THE SLOT AND DOWNWARDLY ALONG THE SIDEWALLS THEREOF.
Inventors
- 👤 Bhaskar Kumar Agarwala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:18
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/02; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/371; Y10T225/379; Y10T225/386; Y10T29/00; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49789; Y10T29/4979; Y10T29/49799
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |