US3449831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental handpiece control
Assignee: LAZAROS C VANDIS
•
Filing: 1967-07-03
•
Granted: 1969-06-17
•
Expires: 1987-07-03
Abstract
No abstract record available.
Inventors
- 👤 Lazaros C Vandis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0007; H; H01; H01H; H01H9/00; H01H9/02; H01H9/06; H01H2300/00; H01H2300/014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3250005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |