US3146775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminating means for medical instruments
Assignee: Welch Allyn Inc
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Filing: 1962-10-29
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Granted: 1964-09-01
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 William C Moore
- 👤 John D Connors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:20
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A SPECULUM FOR USE IN A MEDICAL INSTRUMENT HAVING A LIGHT SOURCE, COMPRISING: A HOLLOW BODY PORTION HAVING AN AXIALLY EXTENDING SIGHT PASSAGE THERETHROUGH, A PLURALITY OF LIGHT-TRANSMITTING FILAMENTS EMBEDDED IN SAID BODY PORTION AND EXTENDING IN AN AXIAL DIRECTION FROM THE PROXIMAL TO THE DISTAL END THEREOF, AND A HOLLOW LIGHT-REFLECTING TIP PORTION RELEASABLY MOUNTED ON THE DISTAL END OF SAID BODY PORTION, SAID TIP PORTION PROJECTING BEYOND SAID BODY PORTION AND FORMING AN EXTENSION OF SAID SIGHT PASSAGE FOR PROTECTING THE DISTAL ENDS OF SAID FILAMENTS AND SPACING THEM FROM THE DISTAL END OF SAID TIP.
Claim 2
Dependent Claim
98 words
A SPECULUM FOR USE IN A MEDICAL INSTRUMENT HAVING A LIGHT SOURCE, COMPRISING: A HOLLOW BODY PORTION HAVING AN AXIALLY EXTENDING SIGHT PASSAGE THERETHROUGH, A PLURALITY OF LIGHT-TRANSMITTING FILAMENTS EMBEDDED IN SAID BODY PORTION AND EXTENDING IN AN AXIAL DIRECTION FROM THE PROXIMAL TO THE DISTAL END THEREOF, AND A HOLLOW LIGHT-REFLECTING TIP PORTION RELEASABLY MOUNTED ON THE DISTAL END OF SAID BODY PORTION, SAID TIP PORTION PROJECTING BEYOND SAID BODY PORTION AND FORMING AN EXTENSION OF SAID SIGHT PASSAGE FOR PROTECTING THE DISTAL ENDS OF SAID FILAMENTS AND SPACING THEM FROM THE DISTAL END OF SAID TIP.
References Cited (Backward Citations)
GB158149A
Cited
US1849701A
Cited
US2273360A
Cited
US2797684A
Cited
US2931739A
Cited
US2992956A
Cited
US3068739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |