Patent US1435029A successfully refreshed from Google Patents.
US3018045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal translating systems
Assignee: Schlumberger Well Surveying Corp
•
Filing: 1955-05-19
•
Granted: 1962-01-23
•
Expires: 1975-05-19
Abstract
No abstract record available.
Inventors
- 👤 William L Poland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:40
CPC Classifications
G; G06; G06J; G06J1/00; H; H03; H03M; H03M1/00; H03M1/12; H03M1/124
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2539623A
Cited
US2580768A
Cited
US2540654A
Cited
US2715678A
Cited
US2754503A
Cited
US2700750A
Cited
US2787418A
Cited
FR1097215A
Cited
US2679638A
Cited
US2865564A
Cited
US2843841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |