Patent US2727252A successfully refreshed from Google Patents.
US2727252A
Expired / Lapsed
US
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Sportsman car top sleeper
Assignee: Individual
•
Filing: 1951-06-14
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Granted: 1955-12-20
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Expires: 1971-06-14
Abstract
No abstract record available.
Inventors
- 👤 Wheeler Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:45
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/36; B60P3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1871871A
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US1864047A
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FR776636A
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US2186584A
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US2222636A
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US2225993A
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US2291900A
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US2496055A
Cited
US2561168A
Cited
US2530450A
Cited
US2574018A
Cited
FR1007592A
Cited
US2589772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |