Patent US2940589A successfully refreshed from Google Patents.
US2940589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact lens case
Assignee: Individual
•
Filing: 1957-05-31
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Granted: 1960-06-14
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Expires: 1977-05-31
Abstract
No abstract record available.
Inventors
- 👤 Ron J Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:25
CPC Classifications
A; A45; A45C; A45C11/00; A45C11/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US496554A
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US2733722A
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US1339265A
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US1598365A
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US2100173A
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CH185544A
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GB564499A
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FR916846A
Cited
US2455600A
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US2496093A
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DE843141C
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US2645375A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |