US3661248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact lens case
Assignee: Griffin Laboratories Inc
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Filing: 1970-10-19
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Granted: 1972-05-09
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Expires: 1990-10-19
Abstract
Abstract A case for storing a contact lens, particularly a semi-scleral type lens, comprises a bottom and a cover hinged thereto. The bottom has a recess or depression formed therein to receive the base of the contact lens. The cover is provided with a domed recess to generally conform to the conical top surface of the lens. Thus, the lens is positioned in the closed case, with its base in the recess and its upper conical surface in contact with the complementary inner domed surface of the cover, whereby the danger of catching the base of the lens between the bottom and cover and causing damage thereto is eliminated.
Inventors
- 👤 Allan A Isen
- 👤 Fredric M Kirchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:06
CPC Classifications
A; A45; A45C; A45C11/00; A45C11/005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A contact lens case for a semi-scleral type lens having a base section and a domed section, comprising a bottom, a recess formed in the bottom, said recess being dimensioned to receive the base section of the lens, a cover for said case to cooperate with said bottom for enclosing the lens, said cover having a domed recess therein of a size to encompass the outer surface of the domed section of the lens, the cover when closed aligning the domed recess with the recess in the bottom the peripheral portion of the base of the lens positioned in the recess to prevent damage to the base of the lens when the cover is closed.
Claim 2
Dependent Claim
115 words
A contact lens case for a semi-scleral type lens having a base section and a domed section, comprising a bottom, a recess formed in the bottom, said recess being dimensioned to receive the base section of the lens, a cover for said case to cooperate with said bottom for enclosing the lens, said cover having a domed recess therein of a size to encompass the outer surface of the domed section of the lens, the cover when closed aligning the domed recess with the recess in the bottom the peripheral portion of the base of the lens positioned in the recess to prevent damage to the base of the lens when the cover is closed.
Claim 3
Dependent Claim
28 words
The contact lens case set forth in claim 1, wherein said cover is hinged to said bottom and perforations are formed in the bottom and in the cover.
Claim 4
Dependent Claim
87 words
The contact lens case set forth in claim 2, wherein said bottom comprises a flat body and said cover comprises a hollow cylinder and wherein said perforations in the bottom are formed by a hub and radiating spokes construction which serves as the floor of the recess, and said perforations in the cover are formed by a hub and radiating spokes formation serving as the top of the cylindrical cover, the spokes in the cover having arcuate inner surfaces which form said domed recess within the cover.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |