US2673984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial eye
Assignee: Individual
•
Filing: 1944-07-27
•
Granted: 1954-04-06
•
Expires: 1964-07-27
Abstract
No abstract record available.
Inventors
- 👤 Eric D Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:56
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/141; B; B29; B29D; B29D11/00; B29D11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US474808A
Cited
FR522945A
Cited
GB175212A
Cited
US1963129A
Cited
US1979321A
Cited
US1993121A
Cited
US2322117A
Cited
US2394400A
Cited
US2391305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |