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US2416896A
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US
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Writing instrument
Assignee: "ETERPEN" FINANCIERA SA
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Filing: 1943-12-31
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Granted: 1947-03-04
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Expires: 1963-12-31
Abstract
No abstract record available.
Inventors
- 👤 Biro Laszlo Jozsef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:11
CPC Classifications
B; B43; B43K; B43K7/00; B43K7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US233924A
Cited
US392046A
Cited
US1179086A
Cited
US1327729A
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US1493680A
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US1500426A
Cited
GB396764A
Cited
GB413764A
Cited
FR800851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-03 | 1950-09-02 | 1951-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-03 | 1954-09-02 | 1955-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-03 | 1958-09-02 | 1959-03-04 | $7700.00 | Window Closed / Lapsed |