US3258879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for grinding contact lenses
Assignee: Individual
•
Filing: 1963-11-04
•
Granted: 1966-07-05
•
Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Carlyle A Edelstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:10
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/0025; B24B13/02; Y; Y10; Y10S; Y10S425/00; Y10S425/808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A MACHINE FOR GRINDING THE INNER CURVED SURFACE OF A CONTACT LENS ON A LAP HAVING A CURVED SURFACE MOLDED FROM AN IMPRESSION OF THE CORNEAL PORTION OF AN EYE, COMPRISING: MEANS FOR ROTATING THE LAP ABOUT AN AXIS NORMAL TO THE APPROXIMATE CENTER OF THE CURVED SURFACE THEREOF, A LENS BLOCK OSCILLATORILY SUPPORTED IN THE MACHINE, MEANS TO BIAS THE CURVED SURFACE OF THE LENS AGAINST THE CURVED SURFACE OF THE LAP, MEANS FOR MAINTAINING SAID BLOCK IN ANGULARLY INDEXED RELATION TO THE LAP DURING ROTATION OF THE LAP, A FIRST MEANS OF OSCILLATING THE BLOCK BODILY IN A CIRCULAR PATH WITH RESPECT TO THE AXIS OF ROTATION OF THE LAP, THE EXTENT OF OSCILLATION BEING A FRACTIONAL PART OF THE WIDTH OF THE LAP, AND A SECOND MEANS FOR OSCILLATING THE BLOCK BODILY IN AN ORBITAL PATH OVER THE CURVED SURFACE OF THE LAP.
Claim 2
Dependent Claim
146 words
A MACHINE FOR GRINDING THE INNER CURVED SURFACE OF A CONTACT LENS ON A LAP HAVING A CURVED SURFACE MOLDED FROM AN IMPRESSION OF THE CORNEAL PORTION OF AN EYE, COMPRISING: MEANS FOR ROTATING THE LAP ABOUT AN AXIS NORMAL TO THE APPROXIMATE CENTER OF THE CURVED SURFACE THEREOF, A LENS BLOCK OSCILLATORILY SUPPORTED IN THE MACHINE, MEANS TO BIAS THE CURVED SURFACE OF THE LENS AGAINST THE CURVED SURFACE OF THE LAP, MEANS FOR MAINTAINING SAID BLOCK IN ANGULARLY INDEXED RELATION TO THE LAP DURING ROTATION OF THE LAP, A FIRST MEANS OF OSCILLATING THE BLOCK BODILY IN A CIRCULAR PATH WITH RESPECT TO THE AXIS OF ROTATION OF THE LAP, THE EXTENT OF OSCILLATION BEING A FRACTIONAL PART OF THE WIDTH OF THE LAP, AND A SECOND MEANS FOR OSCILLATING THE BLOCK BODILY IN AN ORBITAL PATH OVER THE CURVED SURFACE OF THE LAP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |