US3031918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for contact lens placement
Assignee: Individual
•
Filing: 1959-04-27
•
Granted: 1962-05-01
•
Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Charles R Moyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:47
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/0061
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2352179A
Cited
US1605725A
Cited
US1548780A
Cited
US2379629A
Cited
DE938272C
Cited
US2919696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |