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Patent US3510934A successfully refreshed from Google Patents.
US3510934A
Expired / Lapsed
US
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Method of manufacturing a writing or drawing nib
Assignee: Standardgraph Filler und Fiebig GmbH
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Filing: 1967-02-01
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Granted: 1970-05-12
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Expires: 1987-02-01
Abstract
No abstract record available.
Inventors
- 👤 Harald Koelichen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:44
CPC Classifications
B; B43; B43K; B43K1/00; B43K1/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T29/49934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US186707A
Cited
US1463015A
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US1839964A
Cited
US2762413A
Cited
US3157143A
Cited
US3361516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |