US3390408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long spar buoy structure and erection method
Assignee: Global Marine Inc
•
Filing: 1966-05-09
•
Granted: 1968-07-02
•
Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Jr George S Lockwood
- 👤 Jr Thad Vreeland
- 👤 Koot Nick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:48
CPC Classifications
B; B63; B63B; B63B51/00; B63B51/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |