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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2022.01) |
B23K 37/00 |
| (11) | Number of the document | 6894 |
| (13) | Kind of document | B |
| (21) | Application number | 2021 538 |
| (22) | Date of filing the application | 2021-07-29 |
| (41) | Date of publication of the application | 2022-02-10 |
| (45) | Date of publication of patent | 2022-03-10 |
| (30) | Number | Date | Country code |
| 202120674921.1 | 2021-03-31 | CN |
| (71) |
Henan Min'an Protective Equipment Co., Ltd.,
West Section of Renmin Road (in the standardized workshop), Xinxiang, Henan,
CN
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| (72) |
Chunsheng Xia, CN
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| (73) |
Henan Min'an Protective Equipment Co., Ltd.,
West Section of Renmin Road (in the standardized workshop), Xinxiang, Henan,
CN
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| (74) |
Reda ŽABOLIENĖ,
METIDA, Verslo centras "VERTAS", Gynėjų g. 16, LT-01109 Vilnius,
LT
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| (54) | Automatic welding equipment for a suspended plate anti-explosion door leaf |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2023-07-29 |