Patent US2654290A successfully refreshed from Google Patents.
US2654290A
Expired / Lapsed
US
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Spectacles with pivotally mounted nose rest
Assignee: Individual
•
Filing: 1951-06-26
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Granted: 1953-10-06
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Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Hirschman Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:04
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/12; G02C5/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1978276A
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US2109949A
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US2066735A
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US2110459A
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US2321083A
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US2326846A
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US2547467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |