Patent US4328803B1 successfully refreshed from Google Patents.
US4328803B1
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Opthalmological procedures
Assignee: OPTHALMIC SYSTEMS Inc
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Filing: 1980-10-20
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Granted: 1994-01-11
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Expires: 2000-10-20
Abstract
No abstract record available.
Inventors
- 👤 G. Pape Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:50
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0048; A61F; A61F2/00; A61F2/02; A61F2/14; A61F9/00; A61F9/007; A61F9/00781; A61L; A61L31/00; A61L31/04; A61L31/042; A61L2430/00; A61L2430/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-10 | 1997-07-12 | 1998-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-10 | 2001-07-12 | 2002-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-10 | 2005-07-12 | 2006-01-11 | $7700.00 | Window Closed / Lapsed |