US4726368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-reflective surgical instruments
Assignee: DANNENBAUM JAMES D
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Filing: 1986-10-01
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Granted: 1988-02-23
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Expires: 2006-10-01
Abstract
Abstract A non-reflective instrument comprising a metallic substrate and a coating selected from the group consisting of Al 2 O 3 , Al 2 O 3 /TiO mixtures, Al 2 O 3 /Cr 3 O 2 mixtures and WC/Co mixtures.
Inventors
- 👤 James R. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/10; C23C4/11; A; A61; A61B; A61B90/00; A61B90/04; A61B18/00; A61B2018/00053; A61B2018/00107; A61B2018/00119
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
49 words
A non-reflective surgical instrument comprising: a surgical instrument metallic substrate; and a non-reflective coating comprising of a mixture of about 60% Al 2 O 3 and about 40% TiO by weight deposited on said instrument by a detonation gun process and rendering said instrument substantially non-reflective of infrared radiation.
Claim 2
Dependent Claim
49 words
A non-reflective surgical instrument comprising: a surgical instrument metallic substrate; and a non-reflective coating comprising of a mixture of about 60% Al 2 O 3 and about 40% TiO by weight deposited on said instrument by a detonation gun process and rendering said instrument substantially non-reflective of infrared radiation.
Claim 3
Dependent Claim
36 words
A non-reflective surgical instrument comprising: a surgical instrument metallic substrate; and a non-reflective coating comprising a Al 2 O 3 /TiO mixture deposited on said substrate, said coating rendering said instrument substantially non-reflective of infrared radiation.
Claim 4
Dependent Claim
36 words
A non-reflective surgical instrument comprising: a surgical instrument metallic substrate; and a non-reflective coating comprising a Al 2 O 3 /TiO mixture deposited on said substrate, said coating rendering said instrument substantially non-reflective of infrared radiation.
Claim 5
Dependent Claim
24 words
The instrument of claim 2 wherein said Al 2 O 3 /TiO mixture is about 60% Al 2 O 3 and about 40% TiO.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |