B43K 13/02
Devices for removing nibs: for cleaning nibs
Official title: for cleaning nibs, e.g. ink reservoirs therein
B43K13/02 (Devices for removing nibs: for cleaning nibs) appears on 4 US grants and 0 published applications in this corpus.
Search patents in B43K- Granted patents
- 4
- Published applications
- 0
- Assignees
- 2
- Inventors
- 7
- Latest grant
- 30 Oct 1990
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Washing liquid cartridge for refill ink type writing instrument30 Oct 1990US 4,966,480 APentel Kabushiki Kaisha
- Device for cleaning ink pen points19 Dec 1978US 4,130,444 AKoh-I-Noor Rapidograph, Inc.
- Pen shaking device25 Apr 1978US 4,085,955 A
- Cleansing receptacle for capillary writing pen parts22 Jun 1976US 3,964,926 AKoh-I-Noor Rapidograph, Inc.
No published applications in this class yet.
Most cited
By later US patents
- Cleansing receptacle for capillary writing pen parts9US 3,964,926 AKoh-I-Noor Rapidograph, Inc. · 1976
- Pen shaking device5US 4,085,955 A1978
- Device for cleaning ink pen points3US 4,130,444 AKoh-I-Noor Rapidograph, Inc. · 1978
- Washing liquid cartridge for refill ink type writing instrument3US 4,966,480 APentel Kabushiki Kaisha · 1990