US3087284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens edging tool
Assignee: W-J (DELAWARE) Inc
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Filing: 1960-08-08
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Granted: 1963-04-30
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Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Henry J Kratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:48
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/14; B24B9/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN A CONTACT LENS EDGING TOOL, THREE ABRADING ELEMENTS, MOUNTING MEANS FOR ROTABLY MOUNTING ALL THREE OF SAID ABRADING ELEMENTS, EACH ON ITS OWN AXIS, AND MEANS FOR ROTATING SAID MOUNTING MEANS, EACH OF SAID ABRADING ELEMENTS HAVING A CONE-SHAPED SURFACE, SAID SURFACES BEING AT DIFFERENT ANGLES RELATIVE TO THE AXIS OF ROTATION OF SAID MOUNTING MEANS AND PROVIDED WITH PADDING WHICH IS DEPRESSIBLE UNDER PRESSURE.
Claim 2
Dependent Claim
66 words
IN A CONTACT LENS EDGING TOOL, THREE ABRADING ELEMENTS, MOUNTING MEANS FOR ROTABLY MOUNTING ALL THREE OF SAID ABRADING ELEMENTS, EACH ON ITS OWN AXIS, AND MEANS FOR ROTATING SAID MOUNTING MEANS, EACH OF SAID ABRADING ELEMENTS HAVING A CONE-SHAPED SURFACE, SAID SURFACES BEING AT DIFFERENT ANGLES RELATIVE TO THE AXIS OF ROTATION OF SAID MOUNTING MEANS AND PROVIDED WITH PADDING WHICH IS DEPRESSIBLE UNDER PRESSURE.
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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |