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US3508552A
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Apparatus for stereotaxic neurosurgery
Assignee: ALEXANDRE AND CIE
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Filing: 1965-10-23
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Granted: 1970-04-28
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Marcel Hainault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/50; A61B6/501; A61B6/02; A61B6/022; A61B90/00; A61B90/10; A61B90/11
Claims Analysis
Total Claims: 0
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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) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |