US2903718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic marker buoy
Assignee: Individual
•
Filing: 1958-02-13
•
Granted: 1959-09-15
•
Expires: 1978-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Zelma H Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:26
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/26; B63B; B63B22/00; B63B22/04; B63B22/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB396524A
Cited
US2016301A
Cited
US2329845A
Cited
US2642693A
Cited
US2687541A
Cited
US2752615A
Cited
US2803838A
Cited
US2825803A
Cited
US2853724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |