US3091062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens de-blocking device
Assignee: Coburn Manufacturing Co Inc
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Filing: 1962-09-17
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Granted: 1963-05-28
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Jack M Suddarth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:12
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/005; B24B13/0057
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
AN APPARATUS FOR REMOVING A SEALED CHUCKING BLOCK FROM THE CONVEX SURFACE OF A LENS BLANK COMPRISING UPPER AND LOWER COAXIAL ANNULAR RINGS CIRCUMSCRIBING SAID BLOCK, SAID UPPER RING IN ANNULAR ENGAGEMENT WITH SAID CONVEX SURFACE OF SAID BLANK, MEANS ROTATABLY MOUNTING RINGS WITH RESPECT TO SAID BLOCK, A HINGE PIVOTALLY CONNECTING SAID UPPER RING TO SAID LOWER RING, A SEAT RIGIDLY SECUR-
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |