Sei Optifrontier Co., Ltd.
15 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 3 name spellings.
10
Ending by 2030
Nov 2027
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 Dec 9, 2026The maintenance fee for Optical fiber holder (US 9,052,487) comes due Dec 9, 2026. Unpaid by Jun 9, 2027, it lapses early.
- 3 fees due Jan 2 to 21, 2027 · next Jan 2
- 2 fees due Mar 26 to 29, 2027 · next Mar 26
- 2 fees due Jun 15 to 30, 2027 · next Jun 15
- 2 fees due Jul 12 to 21, 2027 · next Jul 12
- 1 fee due Aug 4, 2027The maintenance fee for Optical fiber holder and optical fiber cleaving apparatus to which optical fiber holder is attachable (US 10,551,564) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
- 1 fee due Sep 17, 2027The maintenance fee for Termination Unit and Optical Fiber Exchange Method Using the Same (US 10,591,693) comes due Sep 17, 2027. Unpaid by Mar 17, 2028, it lapses early.
- 1 fee due Oct 12, 2027The maintenance fee for Heat treatment device for optical fiber reinforcing member, optical fiber fusion splicer provided with same heat treatment device, and method for heat treating optical fiber reinforcing member (US 9,310,557) comes due Oct 12, 2027. Unpaid by Apr 12, 2028, it lapses early.
- 1 fee due Nov 5, 2027The maintenance fee for Optical connector (US 10,641,971) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
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 D692,739 | Pushing part for an optical fiber cutter In force · From the USPTO record | In force | From the USPTO record | |
| US D692,740 | Cutter blade assembly for an optical fiber cutter In force · From the USPTO record | In force | From the USPTO record | |
| US D694,602 | Optical fiber cutter In force · From the USPTO record | In force | From the USPTO record | |
| US D702,530 | Metal hinge support for an optical fiber cutter In force · From the USPTO record | In force | From the USPTO record | |
| US D709,286 | Carrying case for an optical fiber fusion splicer In force · From the USPTO record | In force | From the USPTO record | |
| US D720,785 | Electrode bar for optical fiber fusion splicer In force · From the USPTO record | In force | From the USPTO record | |
| US D733,655 | Housing For Optical Connector In force · High confidence | In force | High confidence | |
| US D734,266 | Optical Connector In force · High confidence | In force | High confidence | |
| US 8,317,406 | Optical Connector In force · High confidence | In force | High confidence | |
| US D746,885 | Optical fiber fusion splicer In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 61: 15 patents in force now held by others · 2 lapsed for an unpaid fee · 2 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.
8 abandoned · 4 no status recorded