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Improvements To Downhole Surveying and Core Sample Orientation Systems, Devices and Methods

US 11,313,191 In force
OverviewFamilyAssignmentsSources & methods

Term ends Nov 10, 2036 · High confidence

Filed Sep 28, 2017 as application 15/562,890 · Granted Apr 26, 2022
Base term plus 224 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2016 2036
Clock starts
Mar 31, 2016
Term ends
Nov 10, 2036
Granted
Apr 26, 2022
base term patent term adjustment fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
224
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 224 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Mar 31, 2016, when application PCT/AU2016/050241, the earliest non-provisional in its chain, was filed (this one was filed Sep 28, 2017)Mar 31, 2036High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+224 days, USPTO patent term adjustment recordNov 10, 2036High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderNov 10, 2036High confidence

This family

US 11,313,191this patent
Nov 2036
Nov 2036
1 of 2 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Oct 3, 2017
Reel 43772, frame 307
Hejleh, Khaled Mufid YousefGlobaltech Corporation Pty Ltd.Assignment of Assignor's Interest
Jun 27, 2025
Reel 71549, frame 950
Globaltech Corporation Pty Ltd.Imdex Technologies Pty Ltd.Assignment of Assignor's Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited