US2549836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode-carrying headgear for electroencephalographic analysis
Assignee: Individual
•
Filing: 1946-06-14
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Granted: 1951-04-24
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Expires: 1966-06-14
Abstract
No abstract record available.
Inventors
- 👤 Archibald R Mcintyre
- 👤 Arthur L Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:41
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6801; A61B5/6802; A61B5/6803; A61B5/24; A61B5/25; A61B5/279; A61B5/291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US872688A
Cited
US1398842A
Cited
US1684860A
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US2208023A
Cited
US2409033A
Cited
US2426958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |