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US2790437A
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US
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Surgical instrument
Assignee: Welch Allyn Inc
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Filing: 1955-10-12
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Granted: 1957-04-30
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Expires: 1975-10-12
Abstract
No abstract record available.
Inventors
- 👤 William C Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:03
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/06; A61B17/00; A61B2017/0046; A61B17/28; A61B17/2812; A61B17/2841; A61B2017/2845; A61B17/29; A61B17/2909; A61B2017/2912; A61B2017/2919; A61B2017/292
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |