US3321034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample collecting impact bit
Assignee: Individual
•
Filing: 1965-01-19
•
Granted: 1967-05-23
•
Expires: 1985-01-19
Abstract
No abstract record available.
Inventors
- 👤 James E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:29
CPC Classifications
E; E21; E21C; E21C51/00; E21B; E21B10/00; E21B10/36; E21B10/40; E21B10/44; E21B10/445; E21B27/00; E21B27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A SAMPLE COLLECTING IMPACT BIT ADAPTED TO FORM A BORE IN ROCK FORMATION, SAID BIT COMPRISING: (A) A TUBULAR SAMPLE COLLECTING MEMBER HAVING A PLURALITY OF OPENINGS CONFRONTING THE WALLS OF SAID BORE THEREBY TO RECEIVE CUTTINGS WHICH MAY WORK UPWARDLY BETWEEN SAID COLLECTING MEMBER AND SAID BORE; (B) AND A CUTTING HEAD CLOSING THE LOWER END OF SAID COLLECTING MEMBER AND INCLUDING AT LEAST ONE ANNULAR LAND, AN AXIALLY DIRECTED IMPACT CUTTING TOOTH IN SAID LAND FOR PRODUCING CUTTINGS AND A GUIDE CHANNEL HAVING ONE END COMMUNICATING WITH SAID LAND AND ANOTHER END COMMUNICATING WITH SAID COLLECTING MEMBER FOR CONVEYING CUTTINGS THERETO.
Claim 2
Dependent Claim
103 words
A SAMPLE COLLECTING IMPACT BIT ADAPTED TO FORM A BORE IN ROCK FORMATION, SAID BIT COMPRISING: (A) A TUBULAR SAMPLE COLLECTING MEMBER HAVING A PLURALITY OF OPENINGS CONFRONTING THE WALLS OF SAID BORE THEREBY TO RECEIVE CUTTINGS WHICH MAY WORK UPWARDLY BETWEEN SAID COLLECTING MEMBER AND SAID BORE; (B) AND A CUTTING HEAD CLOSING THE LOWER END OF SAID COLLECTING MEMBER AND INCLUDING AT LEAST ONE ANNULAR LAND, AN AXIALLY DIRECTED IMPACT CUTTING TOOTH IN SAID LAND FOR PRODUCING CUTTINGS AND A GUIDE CHANNEL HAVING ONE END COMMUNICATING WITH SAID LAND AND ANOTHER END COMMUNICATING WITH SAID COLLECTING MEMBER FOR CONVEYING CUTTINGS THERETO.
References Cited (Backward Citations)
US50967A
Cited
US137036A
Cited
US615794A
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US767706A
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US1718463A
Cited
US1569787A
Cited
US1663025A
Cited
US1894999A
Cited
US2648524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |