US3128768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical drill
Assignee: Emerson Process Management Ltd
•
Filing: 1961-11-24
•
Granted: 1964-04-14
•
Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Geistauts Mikelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:43
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1613; A61B17/1633; A61B90/00; A61B90/08; A61B2090/0801; A61B2090/08021; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/56; Y10T408/564; Y10T408/5653
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A SURGICAL DRILL COMPRISING A HOLLOW CHUCKING MANDREL, A SLENDER DRILL FITTED IN SAID MANDREL AND HAVING ITS BIT END PROJECTING FROM SAID MANDREL, A HELICAL COIL SPRING SLIDABLY MOUNTED OVER AN EXPOSED PART OF SAID DRILL AND BEING OF DIAMETER TO SNUGLY FIT SAID DRILL, A TELESCOPIC SLEEVE COMPOSED OF AT LEAST TWO SECTIONS MOUNTED OVER SAID DRILL AND SPRING AND ATTACHED TO SAID MANDREL, MEANS TO PREVENT SAID SPRING FROM MOVING AXIALLY OUT OF SAID TELESCOPIC SLEEVE, SAID TELESCOPIC SLEEVE HAVING AN APERTURE THEREIN THROUGH WHICH THE DRILL IS ADAPTED TO BE PROJECTED AS THE SLEEVE IS TELESCOPED.
Claim 2
Dependent Claim
100 words
A SURGICAL DRILL COMPRISING A HOLLOW CHUCKING MANDREL, A SLENDER DRILL FITTED IN SAID MANDREL AND HAVING ITS BIT END PROJECTING FROM SAID MANDREL, A HELICAL COIL SPRING SLIDABLY MOUNTED OVER AN EXPOSED PART OF SAID DRILL AND BEING OF DIAMETER TO SNUGLY FIT SAID DRILL, A TELESCOPIC SLEEVE COMPOSED OF AT LEAST TWO SECTIONS MOUNTED OVER SAID DRILL AND SPRING AND ATTACHED TO SAID MANDREL, MEANS TO PREVENT SAID SPRING FROM MOVING AXIALLY OUT OF SAID TELESCOPIC SLEEVE, SAID TELESCOPIC SLEEVE HAVING AN APERTURE THEREIN THROUGH WHICH THE DRILL IS ADAPTED TO BE PROJECTED AS THE SLEEVE IS TELESCOPED.
References Cited (Backward Citations)
GB565964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |