US4215890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens holder
Assignee: Individual
•
Filing: 1978-12-07
•
Granted: 1980-08-05
•
Expires: 1998-12-07
Abstract
Abstract This is a holder for glass or plastic lenses of varying sizes and shapes used to facilitate their handling. A lens is removably held within a flexible loop with an inner groove which receives the edge of the lens. The ends of the loop are fastened to each other and encased in a tubular handle which serves as a means for handling the lens readily without damaging it. A sliding sleeve enables one to lock a lens into the holder or remove it easily when necessary.
Inventors
- 👤 Milton Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:24
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
72 words
An adjustable lens holder comprising a flexible loop shaped frame, formed of a continous strip of material, free end portions on said frame forming a straight shank, an elongated groove within said looped frame to receive a lens, a tubular handle to receive the free ends of said loop shaped frame, and a tightening sleeve slidably mounted on said frame shank above said handle to lock a lens within the elongated groove.
Claim 2
Dependent Claim
72 words
An adjustable lens holder comprising a flexible loop shaped frame, formed of a continous strip of material, free end portions on said frame forming a straight shank, an elongated groove within said looped frame to receive a lens, a tubular handle to receive the free ends of said loop shaped frame, and a tightening sleeve slidably mounted on said frame shank above said handle to lock a lens within the elongated groove.
Claim 3
Dependent Claim
21 words
An adjustable lens holder according to claim 1 in which the flexible loop shaped frame is made of cellulose acetate butyrate.
References Cited (Backward Citations)
US681283A
Cited
US718748A
Cited
US1221794A
Cited
US1483745A
Cited
US2322441A
Cited
US2268430A
Cited
US2634153A
Cited
FR2347861A7
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |