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Patent US3378089A successfully refreshed from Google Patents.
US3378089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined junk basket
Assignee: KENNETH R MARSH
•
Filing: 1966-04-04
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Granted: 1968-04-16
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Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:37
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/08; E21B31/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A JUNK BASKET FOR AN OIL WELL COMPRISING: (A) A TUBULAR BODY, (B) A PERMANENT MAGNET WITHIN THE TUBULAR BODY (C) SPACED FROM THE WALLS OF THE BODY TO PROVIDE FLUID PASSAGEWAYS BETWEEN THE WALLS OF THE BODY AND THE MAGNET, (D) THREAD MEANS AT THE TOP OF THE BODY FOR ATTACHING IT TO A ROTATING STRING OF DRILL STEM, (E) SLANTED TEETH MEANS ON THE BOTTOM OF THE BODY FOR DIGGING UP DEBRIS AT THE BOTTOM OF THE WELL, (F) A PLURALITY OF HOLES FROM THE PASSAGEWAY BETWEEN THE MAGNET AND WALLS TO THE TEETH MEANS, (G) SAID HOLES BEING SLANTED IN THE SAME DIRECTION AS THE TEETH MEANS, (H) THE NECK OF THE BODY ABOVE THE MAGNET HAVING AN OUTSIDE DIAMETER LESS THAN THE OUTSIDE DIAMETER AT THE MAGNET AND THE TEETH, AND (J) A CUP SURROUNDING THE NECK OF THE BODY, (K) SAID CUP HAVING AN OPEN TOP.
Claim 2
Dependent Claim
151 words
A JUNK BASKET FOR AN OIL WELL COMPRISING: (A) A TUBULAR BODY, (B) A PERMANENT MAGNET WITHIN THE TUBULAR BODY (C) SPACED FROM THE WALLS OF THE BODY TO PROVIDE FLUID PASSAGEWAYS BETWEEN THE WALLS OF THE BODY AND THE MAGNET, (D) THREAD MEANS AT THE TOP OF THE BODY FOR ATTACHING IT TO A ROTATING STRING OF DRILL STEM, (E) SLANTED TEETH MEANS ON THE BOTTOM OF THE BODY FOR DIGGING UP DEBRIS AT THE BOTTOM OF THE WELL, (F) A PLURALITY OF HOLES FROM THE PASSAGEWAY BETWEEN THE MAGNET AND WALLS TO THE TEETH MEANS, (G) SAID HOLES BEING SLANTED IN THE SAME DIRECTION AS THE TEETH MEANS, (H) THE NECK OF THE BODY ABOVE THE MAGNET HAVING AN OUTSIDE DIAMETER LESS THAN THE OUTSIDE DIAMETER AT THE MAGNET AND THE TEETH, AND (J) A CUP SURROUNDING THE NECK OF THE BODY, (K) SAID CUP HAVING AN OPEN TOP.
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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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |