Patent US2789381A successfully refreshed from Google Patents.
US2789381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal trim plastic spectacle frame
Assignee: Individual
•
Filing: 1953-10-21
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Granted: 1957-04-23
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Expires: 1973-10-21
Abstract
No abstract record available.
Inventors
- 👤 Austin B Belgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:42
CPC Classifications
G; G02; G02C; G02C11/00; G02C11/02; G02C5/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1778726A
Cited
US1863633A
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US1996183A
Cited
US2081082A
Cited
US2308462A
Cited
US2552664A
Cited
US2442483A
Cited
GB694593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |