Patent US2582048A successfully refreshed from Google Patents.
US2582048A
Expired / Lapsed
US
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Spectacle lens layout device
Assignee: Individual
•
Filing: 1947-02-26
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Granted: 1952-01-08
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Expires: 1967-02-26
Abstract
No abstract record available.
Inventors
- 👤 John H Line
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:28
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/005; B24B13/0055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320542A
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US2413198A
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US1164795A
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US1161882A
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US1336040A
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US1622776A
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US1977446A
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US1931477A
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US2104079A
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US2247737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |