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Patent US2720439A successfully refreshed from Google Patents.
US2720439A
Expired / Lapsed
US
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Tooth brush holder
Assignee: Individual
•
Filing: 1953-10-08
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Granted: 1955-10-11
•
Expires: 1973-10-08
Abstract
No abstract record available.
Inventors
- 👤 Cristoval Augusto San
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:22
CPC Classifications
A; A47; A47K; A47K1/00; A47K1/08; A47K1/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1408370A
Cited
US1892374A
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GB351843A
Cited
US2060598A
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US2243841A
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US2411196A
Cited
US2422051A
Cited
US2584042A
Cited
US2639957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |