US3333369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mounting plastic lens for grinding
Assignee: Individual
•
Filing: 1964-07-08
•
Granted: 1967-08-01
•
Expires: 1984-07-08
Abstract
No abstract record available.
Inventors
- 👤 William R Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:49
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A LENS BLOCKING DEVICE INCLUDING A CYLINDRICAL BODY ADAPTED TO RECEIVE A LENS BLOCK THEREON, SAID BODY HAVING AN AXIAL CAVITY THEREIN TO RECEIVE A SHANK OF SAID LENS BLOCK; A SLEEVE SURROUNDING SAID BODY AND SLIDABLE AXIALLY THERTOF, THE INSIDE DIMENSION OF SAID SLEEVE BEING SUCH SIZE TO RETAIN SAID LENS BLOCK IN AXIAL ALIGNMENT THEREWITH, THE UPPER EDGE OF SAID SLEEVE BEING ADAPTED TO RECEIVE A SEMIFINISHED LENS WITH THE AXIS OF THE LENS ALIGNED WITH THE AXIS OF SAID LENS BLOCK, SAID SLEEVE BEING SLIDABLE TO THE EXTENT NECESSARY FOR A SEMI-FINISHED LENS RECEIVED ON SAID UPPER EDGE OF SAID SLEEVE TO ABOUT SAID LENS BLOCK.
Claim 2
Dependent Claim
109 words
A LENS BLOCKING DEVICE INCLUDING A CYLINDRICAL BODY ADAPTED TO RECEIVE A LENS BLOCK THEREON, SAID BODY HAVING AN AXIAL CAVITY THEREIN TO RECEIVE A SHANK OF SAID LENS BLOCK; A SLEEVE SURROUNDING SAID BODY AND SLIDABLE AXIALLY THERTOF, THE INSIDE DIMENSION OF SAID SLEEVE BEING SUCH SIZE TO RETAIN SAID LENS BLOCK IN AXIAL ALIGNMENT THEREWITH, THE UPPER EDGE OF SAID SLEEVE BEING ADAPTED TO RECEIVE A SEMIFINISHED LENS WITH THE AXIS OF THE LENS ALIGNED WITH THE AXIS OF SAID LENS BLOCK, SAID SLEEVE BEING SLIDABLE TO THE EXTENT NECESSARY FOR A SEMI-FINISHED LENS RECEIVED ON SAID UPPER EDGE OF SAID SLEEVE TO ABOUT SAID LENS BLOCK.
References Cited (Backward Citations)
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Cited
US1332778A
Cited
US1456673A
Cited
US2301035A
Cited
US2441472A
Cited
US3091062A
Cited
US3183637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |