US2931338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic cartridge for containing liquid ink
Assignee: BIC Pen Corp
•
Filing: 1958-08-07
•
Granted: 1960-04-05
•
Expires: 1978-08-07
Abstract
No abstract record available.
Inventors
- 👤 Harold W Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:17
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14598; B43; B43K; B43K5/00; B43K5/02; B43K5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1658940A
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US1671125A
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US2173627A
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US2629362A
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US2620773A
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US2484965A
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CH273834A
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US2673374A
Cited
FR1032362A
Cited
US2671577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |