US2734476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
marsh
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:16
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/247; B60; B60F; B60F3/00; B60F3/0007; B60F3/0015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US328559A
Cited
CH32510A
Cited
US1258183A
Cited
FR510965A
Cited
US1839766A
Cited
US1822132A
Cited
US2426342A
Cited
US2442334A
Cited
US2463121A
Cited
US2613892A
Cited
US8300961B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |