US2810151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Castored roller with self-laying track
Assignee: Individual
•
Filing: 1955-09-26
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Granted: 1957-10-22
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Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Sidney D Lapham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:33
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/0047; B60B33/0052; B60B33/0002; B60B33/0015; B60B33/0021; B60B33/0028; B60B33/0036; B60B33/0039; B60B33/0044; B60B33/0049; B60B33/0055; B60B33/0057; B60B33/006; B60B33/0065; B60B33/0068; B60B33/0076; B60B2200/00; B60B2200/40; B60B2200/43; B60B2900/00; B60B2900/50; B60B2900/531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2631328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |