US2561402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacle temple
Assignee: E F NELSON Co Inc
•
Filing: 1947-01-24
•
Granted: 1951-07-24
•
Expires: 1967-01-24
Abstract
No abstract record available.
Inventors
- 👤 Ellis F Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:47
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/14; G02C5/143; G02C11/00; G02C3/00; G02C3/003; G02C2200/00; G02C2200/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB189406127A
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US704714A
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US1496560A
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US1806464A
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US2032843A
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US2162678A
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US2259080A
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US2259082A
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US2436101A
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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) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |