Noram Engineering and Constructors Ltd.

10 patents currently held · Updated Nov 14, 2026

3 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 2 name spellings.

Ending by 2030

Dec 2032

Next term end

When these terms end

5 yrs10 yrs20 yrs

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 Jan 16, 2027
The maintenance fee for Gas treatment process and apparatus (US 10,350,543) comes due Jan 16, 2027. Unpaid by Jul 16, 2027, it lapses early.
1 fee due May 21, 2027
The maintenance fee for Nitration reactor and method (US 11,819,819) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.

Which patents, and when each one lapses · Pro

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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 9,567,707	Purification process for partly-hydrolyzed cellulose In force Term ends Dec 28, 2032 · From the USPTO record	In force	Term ends Dec 28, 2032	From the USPTO record
US 10,016,726	Purification process for partly-hydrolyzed cellulose In force Term ends May 11, 2034 · From the USPTO record	In force	Term ends May 11, 2034	From the USPTO record
US 10,697,122	Process for making partly-hydrolyzed cellulose using compressed cellulosic materials In force Term ends Feb 17, 2035 · From the USPTO record	In force	Term ends Feb 17, 2035	From the USPTO record
US 10,350,543	Gas treatment process and apparatus In force Term ends Oct 28, 2035 · From the USPTO record	In force	Term ends Oct 28, 2035	From the USPTO record
US 10,933,368	Gas treatment processes and systems for reducing tail gas emissions In force Term ends Mar 8, 2039 · From the USPTO record	In force	Term ends Mar 8, 2039	From the USPTO record
US 11,207,628	Processes and devices for separating entrainment from sulphuric acid plant process gas In force Term ends Jan 3, 2040 · From the USPTO record	In force	Term ends Jan 3, 2040	From the USPTO record
US 11,819,819	Nitration reactor and method In force Term ends Jun 1, 2040 · From the USPTO record	In force	Term ends Jun 1, 2040	From the USPTO record
US 12,420,246	Fluid mixing device In force Term ends Apr 22, 2041 · From the USPTO record	In force	Term ends Apr 22, 2041	From the USPTO record
US 12,358,813	Kraft pulping foul condensate treatment process and apparatus In force Term ends Sep 5, 2042 · From the USPTO record	In force	Term ends Sep 5, 2042	From the USPTO record
US 12,594,565	Spray Gun with Adjustable Atomizer and Removable Nozzle Body In force Term ends Feb 15, 2044 · High confidence	In force	Term ends Feb 15, 2044	High confidence

Also on record, not counted in the 10: 3 patents in force now held by others · 9 lapsed for an unpaid fee · 36 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.

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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.

1 pending · 1 no status recorded

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