US2310346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driver's chair
Assignee: Heywood Wakefield Co
•
Filing: 1939-12-26
•
Granted: 1943-02-09
•
Expires: 1959-12-26
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:57
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/16; B60N2/1605; B60N2/163; B60N2/1675; B60N2/1685; B60N2/169; B60N2/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-02-08 | 1946-08-10 | 1947-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-08 | 1950-08-10 | 1951-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-08 | 1954-08-10 | 1955-02-09 | $7700.00 | Window Closed / Lapsed |