US3466877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-leveling land or underwater station
Assignee: Westinghouse Electric Corp
•
Filing: 1967-03-17
•
Granted: 1969-09-16
•
Expires: 1987-03-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Foley
- 👤 Stanley L Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:55
CPC Classifications
E; E21; E21B; E21B15/00; E21B15/02; B; B63; B63B; B63B35/00; B63B35/44; E02; E02B; E02B17/00; E02D; E02D23/00; E02D23/16; E02D27/00; E02D27/32; E02D27/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US856713A
Cited
US1272110A
Cited
US2430014A
Cited
US2966778A
Cited
US3143172A
Cited
US3352559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |