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US3030926A
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Assignee: Faber Castell AG
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Filing: 1959-01-13
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Granted: 1962-04-24
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Expires: 1979-01-13
Abstract
No abstract record available.
Inventors
- 👤 Sattmann Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:14
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE703046C
Cited
US2425198A
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US2536124A
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DE940872C
Cited
FR947147A
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FR56857E
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US2700784A
Cited
US2823403A
Cited
US2968826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |