US2492427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mouth reflector with light
Assignee: Individual
•
Filing: 1947-01-25
•
Granted: 1949-12-27
•
Expires: 1967-01-25
Abstract
No abstract record available.
Inventors
- 👤 Jack J Hoefling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:41
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/24; A61B1/247; A61B1/06; A61B1/0661; A61B1/0676
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |