US2439803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical drill
Assignee: Individual
•
Filing: 1945-01-19
•
Granted: 1948-04-20
•
Expires: 1965-01-19
Abstract
No abstract record available.
Inventors
- 👤 Josef H Giesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:57
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0078; B23Q11/0092; A; A61; A61B; A61B17/00; A61B17/16; A61B17/1613; A61B17/1622; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19484; Y10T74/19493
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309798A
Cited
US857151A
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US993829A
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US1475153A
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US1905851A
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GB353706A
Cited
US2144342A
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US2299267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |