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Patent US3252247A successfully refreshed from Google Patents.
US3252247A
Expired / Lapsed
US
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Program car
Assignee: Individual
•
Filing: 1962-11-09
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Granted: 1966-05-24
•
Expires: 1982-11-09
Abstract
No abstract record available.
Inventors
- 👤 Richard C Miller
- 👤 Robbins James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:09
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2374790A
Cited
US2431381A
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US2680791A
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US2846813A
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US2876304A
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US2881832A
Cited
US2775848A
Cited
US3131508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |