US3491747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curette device
Assignee: Individual
•
Filing: 1966-08-12
•
Granted: 1970-01-27
•
Expires: 1986-08-12
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:28
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US618521A
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US752356A
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US651395A
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US654763A
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US687112A
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US1092914A
Cited
US2397823A
Cited
US2994321A
Cited
US3088454A
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US3342175A
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US3404677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |