The Patent Finder

Maintenance fees coming due

Technological Resources Pty Limited

21 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 26, 2026. Unpaid by May 26, 2027, that one lapses early.
A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.
PatentTitleHolderStatusFee dueLapses if unpaidExpiresConfidence
US 9,041,801Mine Operation Monitoring System
In force
Fee due Nov 26, 2026
Lapses if unpaid May 26, 2027
 · High confidence
Technological Resources Pty. LimitedIn forceNov 26, 2026May 26, 2027High confidence
US 11,725,484Method of generating a drill hole sequence plan and drill hole sequence planning equipment
In force
Fee due Feb 15, 2027
Lapses if unpaid Aug 16, 2027
 · High confidence
Technological Resources Pty Ltd.In forceFeb 15, 2027Aug 16, 2027High confidence
US 10,384,698A Rail Crossover Control System
In force
Fee due Feb 20, 2027
Lapses if unpaid Aug 20, 2027
 · High confidence
Technological Resources Pty. LimitedIn forceFeb 20, 2027Aug 20, 2027High confidence
US 10,385,691Skip and Crosshead
In force
Fee due Feb 20, 2027
Lapses if unpaid Aug 20, 2027
 · High confidence
Technological Resources Pty. LimitedIn forceFeb 20, 2027Aug 20, 2027High confidence
US 11,732,568Method of, and a System for, Controlling a Drilling Operation
In force
Fee due Feb 22, 2027
Lapses if unpaid Aug 23, 2027
 · High confidence
Technological Resources Pty LimitedIn forceFeb 22, 2027Aug 23, 2027High confidence
US 9,146,553Control System for Autonomous Operation
In force
Fee due Mar 29, 2027
Lapses if unpaid Sep 29, 2027
 · Medium confidence
Technological Resources Pty. LimitedIn forceMar 29, 2027Sep 29, 2027Medium confidence
US 9,194,020Heap Leaching
In force (reinstated)
Fee due May 24, 2027
Lapses if unpaid Nov 24, 2027
 · High confidence
Technological Resources Pty. LimitedIn force (reinstated)May 24, 2027Nov 24, 2027High confidence
US 10,526,685Heap Leaching
In force
Fee due Jul 7, 2027
Lapses if unpaid Jan 7, 2028
 · High confidence
Technological Resources Pty. LimitedIn forceJul 7, 2027Jan 7, 2028High confidence
US 9,234,426Mine Operation Monitoring System
In force
Fee due Jul 12, 2027
Lapses if unpaid Jan 12, 2028
 · High confidence
Technological Resources Pty. LimitedIn forceJul 12, 2027Jan 12, 2028High confidence
US 9,239,302Method and Apparatus for Analysing a Material
In force
Fee due Jul 19, 2027
Lapses if unpaid Jan 19, 2028
 · High confidence
Technological Resources Pty. LimitedIn forceJul 19, 2027Jan 19, 2028High confidence
11 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro
10 of 21 patents shown. Soonest fee due date first, then patent number.
Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.
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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited