Patent US4079470A successfully refreshed from Google Patents.
US4079470A
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Artificial intraocular lens
Assignee: American Optical Corp
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Filing: 1977-02-16
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Granted: 1978-03-21
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Expires: 1997-02-16
Abstract
Abstract A chemically durable, biologically inert optical implant lens formed of a low density natural or synthetic crystal, such as Corundum, Sapphrie, Ruby, Sircon, Strontium Titanate, Diamond, Anatase or Ruby.
Inventors
- 👤 Emil W. Deeg
- 👤 David A. La Marre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; A61F2002/1681; A61F2002/1683
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
52 words
An ocular implant lens having optically finished front and rear surfaces, center thickness and index of refraction together affording an ophthalmic power suitable for intraocular use and wherein said lens is formed of a crystalline material selected from the group consisting of Corundum, Sapphire, Ruby, Zircon, Strontium Titanate, Diamond, Anatase and Rutile.
Claim 2
Dependent Claim
52 words
An ocular implant lens having optically finished front and rear surfaces, center thickness and index of refraction together affording an ophthalmic power suitable for intraocular use and wherein said lens is formed of a crystalline material selected from the group consisting of Corundum, Sapphire, Ruby, Zircon, Strontium Titanate, Diamond, Anatase and Rutile.
Claim 3
Dependent Claim
10 words
A lens according to claim 1 including intraocular fixturing means.
Claim 4
Dependent Claim
13 words
A lens according to claim 2 wherein said fixturing means comprises iris clips.
Claim 5
Dependent Claim
12 words
A lens according to claim 2 wherein said fixturing comprises iridocapsular loops.
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) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |