Patent US3376941A successfully refreshed from Google Patents.
US3376941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for recordation of the orientation of tools in remote locations
Assignee: Mobil Oil AS
•
Filing: 1966-02-23
•
Granted: 1968-04-09
•
Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 John L Fitch
- 👤 Bobbie J Patton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:11
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/02; E21B47/024
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2292838A
Cited
US2203730A
Cited
US2709069A
Cited
US2810548A
Cited
US3209823A
Cited
US3088528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |