Patent US2913580A successfully refreshed from Google Patents.
US2464321A
Expired / Lapsed
US
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Dental plate brush
Assignee: Individual
•
Filing: 1944-10-24
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Granted: 1949-03-15
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Expires: 1964-10-24
Abstract
No abstract record available.
Inventors
- 👤 Harry V Konczal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:48
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/026; A46B9/04; A46B2200/00; A46B2200/10; A46B2200/1066; A46B2200/1073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1476579A
Cited
US2129306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |