US2470783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plane marker buoy
Assignee: Individual
•
Filing: 1945-05-15
•
Granted: 1949-05-24
•
Expires: 1965-05-15
Abstract
No abstract record available.
Inventors
- 👤 Vincent A Mead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:12
CPC Classifications
B; B64; B64C; B64C35/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1836495A
Cited
US1860327A
Cited
US2149808A
Cited
US2192450A
Cited
US2317285A
Cited
US2380587A
Cited
US2357417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |