US2534288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maneuvering board attachment
Assignee: Individual
•
Filing: 1945-10-16
•
Granted: 1950-12-19
•
Expires: 1965-10-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles W Merriam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:30
CPC Classifications
F; F41; F41G; F41G11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US252065A
Cited
US499495A
Cited
US726973A
Cited
GB190709145A
Cited
GB191322117A
Cited
US1133540A
Cited
US1296704A
Cited
US1853740A
Cited
US1917278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |