US3457922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereotaxic surgical instrument and method
Assignee: Individual
•
Filing: 1966-12-13
•
Granted: 1969-07-29
•
Expires: 1986-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles D Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
A; A61; A61B; A61B90/00; A61B90/10; A61B90/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3073310A
Cited
US3357431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |