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US2445657A
Expired / Lapsed
US
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Toothbrush
Assignee: Individual
•
Filing: 1945-05-08
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Granted: 1948-07-20
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Paul G Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:39
CPC Classifications
A; A46; A46B; A46B5/00; A46B5/002; A46B5/0025; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US758764A
Cited
US759490A
Cited
US1327807A
Cited
US1466723A
Cited
US1494448A
Cited
US1928328A
Cited
US2254365A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |