US2831722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible trailer
Assignee: PALACE Corp
•
Filing: 1954-03-09
•
Granted: 1958-04-22
•
Expires: 1974-03-09
Abstract
No abstract record available.
Inventors
- 👤 Frank D Hanson
- 👤 Clyde F Walt
- 👤 Donald F Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:45
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/34; Y; Y10; Y10T; Y10T24/00; Y10T24/21; Y10T24/2102; Y10T24/2128; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832; Y10T74/18848
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US559962A
Cited
US566127A
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CA482243A
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US862573A
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US1154791A
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US1964894A
Cited
GB376998A
Cited
US2167557A
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US2395691A
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US2512565A
Cited
US2739833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |