US2622259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush having separate rows of long bristles and short bristles
Assignee: Individual
•
Filing: 1947-07-11
•
Granted: 1952-12-23
•
Expires: 1967-07-11
Abstract
No abstract record available.
Inventors
- 👤 Francis E Chauvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:19
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/04; Y; Y10; Y10S; Y10S15/00; Y10S15/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US180717A
Cited
GB190904549A
Cited
GB225048A
Cited
US1724955A
Cited
US1680558A
Cited
US1914240A
Cited
CH181500A
Cited
US2097987A
Cited
GB438333A
Cited
FR855253A
Cited
US2287327A
Cited
US2503134A
Cited
US2438268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |