Patent US4822359A successfully refreshed from Google Patents.
US4822359A
Expired / Lapsed
US
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Intraocular lens with coated diamond-like carbon film
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1988-02-18
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Granted: 1989-04-18
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Expires: 2008-02-18
Abstract
Abstract An intraocular lens comprises an artificial crystalline lens and a diamond-like carbon film coated on the surface of the artificial crystalline lens.
Inventors
- 👤 Yasuo Tano
- 👤 Hisashi Hosotani
- 👤 Naoji Fujimori
- 👤 Keizo Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:35
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; A61L; A61L27/00; A61L27/28; A61L27/30; A61L27/303; G; G02; G02B; G02B1/00; G02B1/04; G02B1/041; G02B1/043; A61F2002/16965; A61F2310/00; A61F2310/00389; A61F2310/00574; A61L2430/00; A61L2430/16
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
34 words
An intraocular lens comprising an artificial crystalline lens, and a diamond-like carbon film coated on the surface of said artificial crystalline lens said film having a thickness in the range of approximately 10-100 nm.
Claim 2
Dependent Claim
34 words
An intraocular lens comprising an artificial crystalline lens, and a diamond-like carbon film coated on the surface of said artificial crystalline lens said film having a thickness in the range of approximately 10-100 nm.
Claim 3
Dependent Claim
19 words
An intraocular lens according to claim 1 wherein said artificial crystalline lens is made of a polymethyl methacrylate resin.
References Cited (Backward Citations)
FR2271589A1
Cited
US4045125A
Cited
DE2705234A1
Cited
US4240163A
Cited
EP0030792A2
Cited
EP0161765A1
Cited
DE3428895A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |