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US3427114A
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US
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Assignee: JS Staedtler GmbH and Co KG
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Filing: 1965-12-01
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Granted: 1969-02-11
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Expires: 1985-12-01
Abstract
No abstract record available.
Inventors
- 👤 Peter Dziuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:14
CPC Classifications
B; B43; B43K; B43K8/00; B43K8/02; B43K8/04; B43K8/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2140009A
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US2416596A
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US2593599A
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US3048879A
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US3181539A
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US3221361A
Cited
US3221360A
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US3278976A
Cited
US3353899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |