Patent US2668308A successfully refreshed from Google Patents.
US2668308A
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Nonslip handle for tooth or denture brushes
Assignee: PAULINE GROSSMAN
•
Filing: 1950-04-03
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Granted: 1954-02-09
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Expires: 1970-04-03
Abstract
No abstract record available.
Inventors
- 👤 Samuel H Grossman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:08
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1048740A
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US1291770A
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US1360292A
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US2084873A
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US2153554A
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US2251853A
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US2229664A
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US2511235A
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US2603806A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |