US3229369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental handpieces
Assignee: Kaltenbach and Voigt GmbH
•
Filing: 1963-02-19
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Granted: 1966-01-18
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Expires: 1983-02-19
Abstract
No abstract record available.
Inventors
- 👤 Hoffmeister Erich
- 👤 Heyse Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:10
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/185; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1954; Y10T74/1956; Y10T74/19565
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A DENTAL HANDPIECE CONSTITUTED BY A BASE PORTION AND AN INSTRUMENT-SUPPORTING PORTION, SAID PORTIONS HAVING ABUTTING ENDS, SAID HANDPIECE COMPRISING A DIVIDED DRIVE SHAFT INCLUDING A FIRST PORTION SUPPORTED IN THE BASE PORTION OF THE HANDPIECE AND A SECOND PORTION SUPPORTED IN THE INSTRUMENT-SUPPORTING PORTION, A PLURALITY OF COAXIAL GEARS ON ONE OF THE PORTIONS OF THE DIVIDED DRIVE SHAFT AND A SINGLE GEAR ON THE OTHER OF THE PORTIONS OF THE DIVIDED DRIVE SHAFT AND MEANS CONNECTING SAID PORTIONS OF SAID HANDPIECE TOGETHER FOR ANGULAR ADJUSTMENT BETWEEN A PLURALITY OF ALIGNED POSITIONS IN EACH OF WHICH SAID SINGLE GEAR ON THE OTHER OF SAID PORTIONS OF THE DIVIDED DRIVE SHAFT IS IN DRIVING CONNECTION WITH A RESPECTIVE GEAR ON SAID ONE PORTION OF THE DIVIDED DRIVE SHAFT, AND LATTER SAID MEANS PROVIDING DIFFERENT RELATIVE AXIAL POSITIONS FOR SAID HANDPIECE PORTIONS IN SAID ALIGNED
Claim 2
Dependent Claim
144 words
A DENTAL HANDPIECE CONSTITUTED BY A BASE PORTION AND AN INSTRUMENT-SUPPORTING PORTION, SAID PORTIONS HAVING ABUTTING ENDS, SAID HANDPIECE COMPRISING A DIVIDED DRIVE SHAFT INCLUDING A FIRST PORTION SUPPORTED IN THE BASE PORTION OF THE HANDPIECE AND A SECOND PORTION SUPPORTED IN THE INSTRUMENT-SUPPORTING PORTION, A PLURALITY OF COAXIAL GEARS ON ONE OF THE PORTIONS OF THE DIVIDED DRIVE SHAFT AND A SINGLE GEAR ON THE OTHER OF THE PORTIONS OF THE DIVIDED DRIVE SHAFT AND MEANS CONNECTING SAID PORTIONS OF SAID HANDPIECE TOGETHER FOR ANGULAR ADJUSTMENT BETWEEN A PLURALITY OF ALIGNED POSITIONS IN EACH OF WHICH SAID SINGLE GEAR ON THE OTHER OF SAID PORTIONS OF THE DIVIDED DRIVE SHAFT IS IN DRIVING CONNECTION WITH A RESPECTIVE GEAR ON SAID ONE PORTION OF THE DIVIDED DRIVE SHAFT, AND LATTER SAID MEANS PROVIDING DIFFERENT RELATIVE AXIAL POSITIONS FOR SAID HANDPIECE PORTIONS IN SAID ALIGNED
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |