US2872210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized trailer
Assignee: Wald Indusries Inc
•
Filing: 1957-02-06
•
Granted: 1959-02-03
•
Expires: 1977-02-06
Abstract
No abstract record available.
Inventors
- 👤 William R Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:14
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/32; B60G11/48; B60G11/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1073330A
Cited
US1757839A
Cited
US1767987A
Cited
US2011239A
Cited
US2126085A
Cited
US2631842A
Cited
US2762631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |