US2711586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum ejector for dental debris
Assignee: Individual
•
Filing: 1953-02-16
•
Granted: 1955-06-28
•
Expires: 1973-02-16
Abstract
No abstract record available.
Inventors
- 👤 James R Groves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:43
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C17/00; A61C17/06; A61C17/08
Claims Analysis
Total Claims: 0
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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) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |