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US2790673A
Expired / Lapsed
US
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Expansible trailer structure
Assignee: Individual
•
Filing: 1955-01-27
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Granted: 1957-04-30
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Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Nieden Harald H Zur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:03
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732251A
Cited
US2202747A
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US2225319A
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US2248080A
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US2306084A
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US2318802A
Cited
CH285325A
Cited
FR1015333A
Cited
US2681231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |