Patent US2622260A successfully refreshed from Google Patents.
US2622260A
Expired / Lapsed
US
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Toothbrush with removable head
Assignee: Individual
•
Filing: 1948-10-11
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Granted: 1952-12-23
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Expires: 1968-10-11
Abstract
No abstract record available.
Inventors
- 👤 Marvin W Vannice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:04
CPC Classifications
A; A46; A46B; A46B7/00; A46B7/04; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2253210A
Cited
US824087A
Cited
GB123472A
Cited
US1497495A
Cited
GB253951A
Cited
US1769747A
Cited
DE500937C
Cited
US2225331A
Cited
US2558332A
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 |