US2811897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic hinge insert for spectacle frame
Assignee: Individual
•
Filing: 1953-11-12
•
Granted: 1957-11-05
•
Expires: 1973-11-12
Abstract
No abstract record available.
Inventors
- 👤 Austin B Belgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:05
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/008; G02C5/02; G02C5/10; G02C5/14; G02C5/146; G02C5/22; G02C5/2218; G02C5/2254; G02C2200/00; G02C2200/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2145307A
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US2529879A
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US2490868A
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US2587870A
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CH277372A
Cited
GB670137A
Cited
US2684014A
Cited
US2727436A
Cited
US2703036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |