US3109238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable dental drill
Assignee: Individual
•
Filing: 1961-11-28
•
Granted: 1963-11-05
•
Expires: 1981-11-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel B Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:25
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/06; A61C1/08; A61C1/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PORTABLE DENTAL DRILL COMPRISED OF AN ELONGATED CASING HAVING A REARWARD AND A FORWARD SECTION, SAID FORWARD SECTION HAVING A CONCAVE FORWARD END, A COUPLING ADAPTED TO REMOVABLY CONNECT SAID SECTIONS IN AXIALLY ELONGATED RELATION, A BATTERY HOUSED WITHIN SAID REARWARD SECTION, AN ELECTRIC MOTOR WHOLLY MOUNTED WITHIN SAID REARWARD SECTION, A RHEOSTAT FOR CONTROLLING THE SPEED OF SAID ELECTRIC MOTOR AND A SLIDABLE CONTACTOR COOPERATIVELY RELATED THEREWITH, SAID SLIDABLE CONTACTOR BEING SURFACEDLY POSITIONED WITHIN SAID CASING AND MANUALLY REGUALTED THEREFROM, A DRIVE SHAFT EXTENDING FROM SAID MOTOR AND PROJECTING INTO AND AXIALLY OF SAID FORWARD SECTION, SOCKET MEANS DISPOSED TERMINALLY OF THE SAID DRIVE SHAFT, AN EXTENSION ADAPTER AXIALLY DISPOSED FOR ROTATION WITHIN THE
Claim 2
Dependent Claim
116 words
A PORTABLE DENTAL DRILL COMPRISED OF AN ELONGATED CASING HAVING A REARWARD AND A FORWARD SECTION, SAID FORWARD SECTION HAVING A CONCAVE FORWARD END, A COUPLING ADAPTED TO REMOVABLY CONNECT SAID SECTIONS IN AXIALLY ELONGATED RELATION, A BATTERY HOUSED WITHIN SAID REARWARD SECTION, AN ELECTRIC MOTOR WHOLLY MOUNTED WITHIN SAID REARWARD SECTION, A RHEOSTAT FOR CONTROLLING THE SPEED OF SAID ELECTRIC MOTOR AND A SLIDABLE CONTACTOR COOPERATIVELY RELATED THEREWITH, SAID SLIDABLE CONTACTOR BEING SURFACEDLY POSITIONED WITHIN SAID CASING AND MANUALLY REGUALTED THEREFROM, A DRIVE SHAFT EXTENDING FROM SAID MOTOR AND PROJECTING INTO AND AXIALLY OF SAID FORWARD SECTION, SOCKET MEANS DISPOSED TERMINALLY OF THE SAID DRIVE SHAFT, AN EXTENSION ADAPTER AXIALLY DISPOSED FOR ROTATION WITHIN THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |