Nihon Parkerizing Co., Ltd.
4 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 5 name spellings.
3
Ending by 2030
Feb 2028
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Feb 15, 2027The maintenance fee for Method for manufacturing a magnesium material or magnesium alloy material with a coating (US 11,725,287) comes due Feb 15, 2027. Unpaid by Aug 16, 2027, it lapses early.
- 2 fees due May 3 to 12, 2027 · next May 3
- 2 fees due Sep 12 to 15, 2027 · next Sep 12
- 2 fees due Oct 23 to 28, 2027 · next Oct 23
Recent changes
- 1 term has ended since Aug 17, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,575,644 | Solution for treating metal surface, surface treating method, and surface treated material In force · From the USPTO record | In force | From the USPTO record | |
| US 9,175,403 | Composition for adhesion layer used for multi-layered surface-treatment steel sheet In force · From the USPTO record | In force | From the USPTO record | |
| US 8,507,416 | Water-Based Lubricant for Plastic Processing Having Excellent Corrosion Resistance and Metal Material Having Excellent Plastic Processability In force · High confidence | In force | High confidence | |
| US 8,741,445 | Aluminum or aluminum alloy material having surface treatment coating film, and method for treating a surface thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 9,284,657 | Replenisher and method for producing surface-treated steel sheet In force · From the USPTO record | In force | From the USPTO record | |
| US 9,534,132 | Hydrophilic surface treatment agent for aluminum-containing metal heat exchangers having excellent drainage In force · From the USPTO record | In force | From the USPTO record | |
| US 10,253,416 | Surface Treatment Agent for Metal Material and Production Method for Surface-Treated Metal Material In force · High confidence | In force | High confidence | |
| US 9,752,046 | Aqueous hydrophilic coating composition capable of forming coating film having excellent self-cleaning ability against stains adhered thereon, and surface-treated material having formed thereon coating film having excellent self-cleaning ability against stains adhered thereon In force · From the USPTO record | In force | From the USPTO record | |
| US 10,023,750 | Aqueous hydrophilizing surface treatment agent, hydrophilic coating film and hydrophilizing surface treatment method In force · From the USPTO record | In force | From the USPTO record | |
| US 10,221,318 | Hydrophilization Treatment Agent for Aluminum-Containing Metal Material In force · High confidence | In force | High confidence |
Also on record, not counted in the 29: 4 patents in force now held by others · 29 lapsed for an unpaid fee · 99 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
6 pending · 7 abandoned · 27 no status recorded