US3112581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact lens finishing machine
Assignee: Individual
•
Filing: 1961-02-03
•
Granted: 1963-12-03
•
Expires: 1981-02-03
Abstract
No abstract record available.
Inventors
- 👤 Hoffman Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:46
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
98 words
IN A MACHINE FOR FINISHING CONTACT LENSES, A ROTATABLE WHEEL HAVING A PERIPHERAL EDGE AND A CIRCULAR UPPER FACE, A CIRCULAR RIM UPSTANDING FROM SAID FACE AT A PLACE ADJACENT AND SPACED FROM SAID PERIPHERAL EDGE, A POLISHING CLOTH MOUNTED ON SAID WHEEL, MEANS HOLDING SAID CLOTH ON SAID WHEEL ADJACENT THE PERIPHERY THEREOF WITH SAID CLOTH BEING LOOSELY MOUNTED BETWEEN SAID RIM AND SAID PERIPHERAL EDGE TO ESTABLISH A LOOSE PORTION OF SAID CLOTH, AND MEANS FOR ROTATABLY SUPPORTING A LENS TO BE FINISHED AGAINST SAID LOOSE PORTION OF SAID CLOTH FOR THE POLISHING OF THE LENS.
References Cited (Backward Citations)
US1491332A
Cited
US2151233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |