US1832519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush and power-actuating means therefor
Assignee: Individual
•
Filing: 1928-10-26
•
Granted: 1931-11-17
•
Expires: 1948-10-26
Abstract
No abstract record available.
Inventors
- 👤 William G Wheat
- 👤 Fred E Byers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:21
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/3409; A61C17/3481; A61C17/3436
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-11-16 | 1935-05-18 | 1935-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-16 | 1939-05-18 | 1939-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-16 | 1943-05-18 | 1943-11-17 | $7700.00 | Window Closed / Lapsed |