US3175374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular member for use in well drilling operations
Assignee: Probe Inc
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Filing: 1962-06-22
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Granted: 1965-03-30
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Lester W Toelke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:27
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A TUBULAR MEMBER FOR USE IN WELL BORE DRILLING OPERATIONS COMPRISING: (A) AN OUTER PERIPHERAL SURFACE ON THE TUBULAR MEMBER, (B) A PLURALITY OF RECESSES SPACED CIRCUMFERENTIALLY IN A ROW IN SAID OUTER PERIPHERAL SURFACE, (C) THERE BEING A PLURALITY OF ROWS OF RECESSES IN SAID OUTER PERIPHERAL SURFACE, (D) SAID RECESSES HAVING END PORTIONS AND SIDE PORTIONS, (E) SAID END PORTIONS OF SAID RECESSES IN EACH ROW OVERLAPPING SAID END PORTIONS OF SAID RECESSES IN THE NEXT ADJACENT ROW, AND (F) SAID SIDE PORTIONS OF SAID RECESSES IN EACH ROW OVERLAPPING SAID SIDE PORTIONS OF SAID RECESSES IN THE NEXT ADJACENT ROW.
Claim 2
Dependent Claim
103 words
A TUBULAR MEMBER FOR USE IN WELL BORE DRILLING OPERATIONS COMPRISING: (A) AN OUTER PERIPHERAL SURFACE ON THE TUBULAR MEMBER, (B) A PLURALITY OF RECESSES SPACED CIRCUMFERENTIALLY IN A ROW IN SAID OUTER PERIPHERAL SURFACE, (C) THERE BEING A PLURALITY OF ROWS OF RECESSES IN SAID OUTER PERIPHERAL SURFACE, (D) SAID RECESSES HAVING END PORTIONS AND SIDE PORTIONS, (E) SAID END PORTIONS OF SAID RECESSES IN EACH ROW OVERLAPPING SAID END PORTIONS OF SAID RECESSES IN THE NEXT ADJACENT ROW, AND (F) SAID SIDE PORTIONS OF SAID RECESSES IN EACH ROW OVERLAPPING SAID SIDE PORTIONS OF SAID RECESSES IN THE NEXT ADJACENT ROW.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |