Patent US4799491A successfully refreshed from Google Patents.
US2678228A
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Diagnostic instrument with magnetic connector
Assignee: Bausch and Lomb Inc
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Filing: 1951-06-08
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Granted: 1954-05-11
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Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Robert V Gerhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:38
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/12; A61B3/1208; A61B1/00; A61B1/227; Y; Y10; Y10S; Y10S403/00; Y10S403/01; Y10T; Y10T24/00; Y10T24/32; Y10T403/00; Y10T403/66; Y10T403/70; Y10T403/7045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US483342A
Cited
GB190315377A
Cited
DE462554C
Cited
GB645018A
Cited
US2406957A
Cited
US2475573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |