US1630239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antrum burr
Assignee: Individual
•
Filing: 1924-05-09
•
Granted: 1927-05-24
•
Expires: 1944-05-09
Abstract
No abstract record available.
Inventors
- 👤 Roy S Binkley
- 👤 Leonard E Stutsman
- 👤 Thomas E Grove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1662; A61B17/1688; A61B17/1642; A61B17/17; A61B17/1739; A61B17/1785; A61B17/1796
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-05-23 | 1930-11-22 | 1931-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-23 | 1934-11-22 | 1935-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-23 | 1938-11-22 | 1939-05-24 | $7700.00 | Window Closed / Lapsed |