US3458959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for edge finishing contact lenses
Assignee: UROCON Inc
•
Filing: 1965-10-24
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Granted: 1969-08-05
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Jacques Urbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:33
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/14; B24B9/142
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
37 words
THE AXIS IS TANGENT TO THE EDGE OF THE LENS AT THE REGION OF THE CONTACT WITH THE DISC. A SCREW 76 (FIG. 4) SERVES AS A STOP, LIMITING DOWNWARD MOVEMENT OF THE TRAVERSE MECHANISM PART 54.
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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) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |