Patent GB538658A successfully refreshed from Google Patents.
US3454966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic corneal fabrication with heating and cooling means to facilitate attachment to corneal tissue
Assignee: Individual
•
Filing: 1965-02-11
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Granted: 1969-07-15
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Expires: 1985-02-11
Abstract
No abstract record available.
Inventors
- 👤 Hyman Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:04
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3022783A
Cited
DE647638C
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US2033397A
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US2224793A
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US2754520A
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US2952023A
Cited
US3096767A
Cited
US3228400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |