US2772433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Economy toothbrush
Assignee: Individual
•
Filing: 1951-04-27
•
Granted: 1956-12-04
•
Expires: 1971-04-27
Abstract
No abstract record available.
Inventors
- 👤 Nicholas A Brunda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:54
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/04; A46B9/00; A46B9/02; A46B9/04; A46B9/08; A46B9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1407214A
Cited
US1750500A
Cited
US1908511A
Cited
US1944797A
Cited
US2426418A
Cited
US2668973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |