Patent US664572A successfully refreshed from Google Patents.
Patent US2491771A successfully refreshed from Google Patents.
US2491771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dishlike container for dental drills and the like
Assignee: Individual
•
Filing: 1947-12-29
•
Granted: 1949-12-20
•
Expires: 1967-12-29
Abstract
No abstract record available.
Inventors
- 👤 Roos Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |