Patent US2546475A successfully refreshed from Google Patents.
US2546475A
Expired / Lapsed
US
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Filler plug for pocket lighters
Assignee: Individual
•
Filing: 1948-10-14
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Granted: 1951-03-27
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Expires: 1968-10-14
Abstract
No abstract record available.
Inventors
- 👤 Frank R Rizzo
- 👤 Charles C Rizzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:20
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/34; F23Q2/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US8251A
Cited
US1111124A
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US666025A
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US654552A
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US1006075A
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US1733641A
Cited
FR625298A
Cited
US1859908A
Cited
US2153330A
Cited
US2356326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |