Patent US2748781A successfully refreshed from Google Patents.
US2748781A
Expired / Lapsed
US
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Means for dental hygiene
Assignee: Individual
•
Filing: 1953-08-24
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Granted: 1956-06-05
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Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Collat Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:47
CPC Classifications
A; A61; A61C; A61C15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US407362A
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US1069874A
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US1138479A
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US1943856A
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US1839486A
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US1989895A
Cited
US2554464A
Cited
US2542518A
Cited
US2667443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |