Patent US3028609A successfully refreshed from Google Patents.
US3028609A
Expired / Lapsed
US
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Folding tent car top sleeper
Assignee: Individual
•
Filing: 1958-01-29
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Granted: 1962-04-10
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Expires: 1978-01-29
Abstract
No abstract record available.
Inventors
- 👤 Elmer L Tolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:40
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)
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US1984681A
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US2530450A
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US2513411A
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US2662232A
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US2710977A
Cited
US2930051A
Cited
CH313285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |