US3010214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ship positioning means and method
Assignee: California Research LLC
•
Filing: 1958-12-24
•
Granted: 1961-11-28
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 William R Postlewaite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:39
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/02; E21B41/00; E21B41/0007; E21B41/0014; E21B7/00; E21B7/12; E21B7/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2415221A
Cited
US2809435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |