US3254356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined toothbrush, tongue scraper and ear cleaner
Assignee: Individual
•
Filing: 1964-08-31
•
Granted: 1966-06-07
•
Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Kou C Yao
- 👤 Yao Nancy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
A; A46; A46B; A46B15/00; A46B15/0055; A46B15/0057; A46B15/0081; A46B5/00; A46B5/002; A46B5/0054; A46B5/0062; A46B5/0066; A61; A61F; A61F11/00; A61F11/006; A46B2200/00; A46B2200/10; A46B2200/1066; A61B; A61B17/00; A61B17/24; A61B17/244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB381843A
Cited
US1323042A
Cited
GB189413341A
Cited
FR734846A
Cited
US1893524A
Cited
US2049956A
Cited
GB711017A
Cited
US3085272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |