US3058471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cornea tome
Assignee: Individual
•
Filing: 1957-02-25
•
Granted: 1962-10-16
•
Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Earl S Shope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:50
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/013; A61F2/00; A61F2/02; A61F2/14; A61F2/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1358328A
Cited
US1758192A
Cited
US2192699A
Cited
US2480737A
Cited
US2598060A
Cited
US2714721A
Cited
FR1125621A
Cited
US2929603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |