Famous Patents
William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
PatentStorm News
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
US Patent 5258025 - Corrective intraocular lens
US Patent Issued on November 2, 1993
Estimated Patent Expiration Date:
May 11, 2012Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
May 11, 2012Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractAn optical body, a positioning element, and a supporting element are shaped as an integral unit and have the same radius of curvature that provides for full adherence of the integral unit to an intact natural lens. The distance between the diametrically opposite portions of the supporting element is at least equal to the distance between Zinn's zonules on which the corrective lens rests.Other References
| InventorsApplicationNo. 884246 filed on 05/11/1992US Classes:623/6.36One lens is natural crystalline lensExaminersPrimary: Shay, Randy C.Attorney, Agent or FirmUS Patent References2834023, 4254509, Accommodating intraocular implantIssued on: 03/10/1981 Inventor: Tennant4585456, Corrective lens for the natural lens of the eye Issued on: 04/29/1986 Inventor: Blackmore4664666, Intraocular lens implants Issued on: 05/12/1987 Inventor: Barrett4737322, Intraocular lens structure with polyimide haptic portion and methods for fabrication Issued on: 04/12/1988 Inventor: Bruns , et al.4769035, Artificial lens and the method for implanting such lens Issued on: 09/06/1988 Inventor: Kelman4840627Artificial eye lens and method of transplanting same Issued on: 06/20/1989 Inventor: Blumenthal Foreign Patent References
International ClassA61F 002/16Foreign Application Priority Data1990-11-21 SU |
