US3020971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cefaly
Assignee: —
•
Filing: —
•
Granted: 1962-02-13
•
Expires: 1979-02-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:07
CPC Classifications
A; A61; A61B; A61B7/00; A61B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1657078A
Cited
US705934A
Cited
US832032A
Cited
US975377A
Cited
US1414801A
Cited
US1646261A
Cited
US1918422A
Cited
US1810307A
Cited
US1748990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |