US3074493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bore hole drilling and logging
Assignee: Sunoco Inc
•
Filing: 1957-11-04
•
Granted: 1963-01-22
•
Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 John D Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
E; E21; E21B; E21B23/00; E21B21/00; E21B21/10; E21B4/00; E21B4/02; E21B47/00; E21B47/01; E21B47/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A DRILL ASSEMBLY OF THE TYPE ARRANGED FOR CONNECTION TO THE LOWER END OF A HOLLOW DRILL STEM, SAID ASSEMBLY COMPRISING A BIT, MEANS CONTROLLED BY FLUID FLOWING DOWNWARDLY THROUGH A DRILL STEM TO WHICH THE ASSEMBLY MAY BE CONNECTED FOR PRODUCING DRILLING MOVEMENTS OF THE BIT, SAID MEANS BEING PROVIDED WITH FLUID PASSAGES FOR ITS OPERATION ARRANGED TO RECEIVE FLUID FROM A DRILL STEM AND OF A NON-STRAIGHT TYPE PREVENTING DIRECT PASSAGE THERETHROUGH OF A LOGGING MEANS ADAPTED TO OPERATE BY PROJECTION BEYOND SAID BIT, SAID FIRST MENTIONED MEANS BEING PROVIDED WITH A PASSAGE AUXILIARY TO THE FIRST MENTIONED PASSAGE THROUGH WHICH SUCH LOGGING MEANS MAY
Claim 2
Dependent Claim
107 words
A DRILL ASSEMBLY OF THE TYPE ARRANGED FOR CONNECTION TO THE LOWER END OF A HOLLOW DRILL STEM, SAID ASSEMBLY COMPRISING A BIT, MEANS CONTROLLED BY FLUID FLOWING DOWNWARDLY THROUGH A DRILL STEM TO WHICH THE ASSEMBLY MAY BE CONNECTED FOR PRODUCING DRILLING MOVEMENTS OF THE BIT, SAID MEANS BEING PROVIDED WITH FLUID PASSAGES FOR ITS OPERATION ARRANGED TO RECEIVE FLUID FROM A DRILL STEM AND OF A NON-STRAIGHT TYPE PREVENTING DIRECT PASSAGE THERETHROUGH OF A LOGGING MEANS ADAPTED TO OPERATE BY PROJECTION BEYOND SAID BIT, SAID FIRST MENTIONED MEANS BEING PROVIDED WITH A PASSAGE AUXILIARY TO THE FIRST MENTIONED PASSAGE THROUGH WHICH SUCH LOGGING MEANS MAY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |