US2568838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable cleansing device for artificial dentures
Assignee: Individual
•
Filing: 1947-09-08
•
Granted: 1951-09-25
•
Expires: 1967-09-08
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:05
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US839745A
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US1337178A
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US1776491A
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US2122583A
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US2419859A
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US2414971A
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US2504726A
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US2443988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |