Patent US3173500A successfully refreshed from Google Patents.
US3173500A
Expired / Lapsed
US
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Sampling device
Assignee: American Coldset Corp
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Filing: 1962-06-27
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Granted: 1965-03-16
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Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Robert W Stuart
- 👤 John D Wisenbaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:02
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/02; E21B49/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
IN AN APPARATUS WHICH IS TO BE LOWERED INTO A DRILL HOLE ON A CABLE AND INCLUDES A HOUSING AND MEANS TO RECEIVE A SAMPLE, MEANS FOR CUTTING A SAMPLE FROM THE SIDE WALL OF A DRILL HOLE COMPRISING A PAIR OF CUTTERS AND MEANS ROTATABLY MOUNTING SAID CUTTERS WITHIN SAID HOUSING IN A V CONFIGURATION WITH THE APEX DIRECTED OUTWARDLY OF SAID HOUSING, DRIVE MEANS WITHIN SAID HOUSING TO ROTATE
Claim 2
Dependent Claim
71 words
IN AN APPARATUS WHICH IS TO BE LOWERED INTO A DRILL HOLE ON A CABLE AND INCLUDES A HOUSING AND MEANS TO RECEIVE A SAMPLE, MEANS FOR CUTTING A SAMPLE FROM THE SIDE WALL OF A DRILL HOLE COMPRISING A PAIR OF CUTTERS AND MEANS ROTATABLY MOUNTING SAID CUTTERS WITHIN SAID HOUSING IN A V CONFIGURATION WITH THE APEX DIRECTED OUTWARDLY OF SAID HOUSING, DRIVE MEANS WITHIN SAID HOUSING TO ROTATE
References Cited (Backward Citations)
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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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |