John Crane Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6
Ending by 2030
Mar 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.
- 2 fees due Mar 19 to 29, 2027 · next Mar 19
- 3 fees due May 7 to 21, 2027 · next May 7
- 1 fee due Jul 5, 2027The maintenance fee for Electroanalytical Sensor Based on Nanocrystalline Diamond Electrodes and Microelectrode Arrays (US 9,228,972) comes due Jul 5, 2027. Unpaid by Jan 5, 2028, it lapses early.
- 1 fee due Oct 28, 2027The maintenance fee for Non-Collapsible Flexible Sealing Membrane and Seal Assembly for Rotary Shaft Equipment (US 10,634,250) comes due Oct 28, 2027. Unpaid by Apr 28, 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 7,611,151 | Mechanical Seal with Thermally Stable Mating Ring In force · High confidence | In force | High confidence | |
| US 7,959,156 | Mechanical Seal with Enhanced Face Stability In force · High confidence | In force | High confidence | |
| US 8,232,559 | Controlling Diamond Film Surfaces and Layering In force · High confidence | In force | High confidence | |
| US 9,790,952 | Seal Monitoring and Control System In force · High confidence | In force | High confidence | |
| US 7,857,319 | Mechanical Seal with Banded Ring In force · High confidence | In force | High confidence | |
| US 8,227,350 | Controlling Diamond Film Surfaces and Layering In force · High confidence | In force | High confidence | |
| US 8,651,801 | Seal Monitoring and Control System In force · High confidence | In force | High confidence | |
| US 9,651,157 | Split Seal Assembly and Method In force · High confidence | In force | High confidence | |
| US 8,701,211 | Method to Reduce Wedge Effects in Molded Trigonal Tips In force · High confidence | In force | High confidence | |
| US 8,979,613 | Nano-fabricated Structured Diamond Abrasive Article In force · High confidence | In force | High confidence |
Also on record, not counted in the 26: 7 lapsed for an unpaid fee · 70 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.
2 pending · 5 abandoned