US3106960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for positioning apparatus in well casings
Assignee: Individual
•
Filing: 1960-01-08
•
Granted: 1963-10-15
•
Expires: 1980-01-08
Abstract
No abstract record available.
Inventors
- 👤 Howard J Doak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:09
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/09; E21B47/092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A DEVICE FOR SPEEDING THE POSITIONING OF APPARATUS IN A WELL CASING AT A DESIRED DEPTH, AND FOR PROMOTING ACCURACY IN SAID POSITIONING, AN IMPROVED CASING MARKER FOR USE IN ASSOCIATION WITH A SENSING INSTRUMENT CAPABLE OF BEING LOWERED INTO SAID CASING, COMPRISING: ARCUATELY CURVED MARKER MEANS FOR PRODUCING IN A SENSING INSTRUMENT A RESPONSE RECORDABLE AT GROUND LEVEL WHEN SAID INSTRUMENT IS LOWERED INTO A WELL CASING IN JUXTAPOSITION TO SAID MEANS; A SUPPORT FOR SAID MEANS SHAPED AS A SLEEVE PROPORTIONED TO ENCIRCLE A WELL CASING, AND FORMED WITH AN INWARDLY FACING RECESS COMPLEMENTING AND RECEIVING SAID MEANS WITH SAID MEANS SUBSTANTIALLY FLUSH WITH THE INNER BORE OF THE SLEEVE; AND MEANS FOR MOUNTING THE SLEEVE ON AN IMPERFORATE PORTION OF THE CASING AT ANY OF A PLURALITY OF SELECTED LOCATIONS ALONG THE LENGTH OF THE CASING.
Claim 2
Dependent Claim
140 words
IN A DEVICE FOR SPEEDING THE POSITIONING OF APPARATUS IN A WELL CASING AT A DESIRED DEPTH, AND FOR PROMOTING ACCURACY IN SAID POSITIONING, AN IMPROVED CASING MARKER FOR USE IN ASSOCIATION WITH A SENSING INSTRUMENT CAPABLE OF BEING LOWERED INTO SAID CASING, COMPRISING: ARCUATELY CURVED MARKER MEANS FOR PRODUCING IN A SENSING INSTRUMENT A RESPONSE RECORDABLE AT GROUND LEVEL WHEN SAID INSTRUMENT IS LOWERED INTO A WELL CASING IN JUXTAPOSITION TO SAID MEANS; A SUPPORT FOR SAID MEANS SHAPED AS A SLEEVE PROPORTIONED TO ENCIRCLE A WELL CASING, AND FORMED WITH AN INWARDLY FACING RECESS COMPLEMENTING AND RECEIVING SAID MEANS WITH SAID MEANS SUBSTANTIALLY FLUSH WITH THE INNER BORE OF THE SLEEVE; AND MEANS FOR MOUNTING THE SLEEVE ON AN IMPERFORATE PORTION OF THE CASING AT ANY OF A PLURALITY OF SELECTED LOCATIONS ALONG THE LENGTH OF THE CASING.
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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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |