Collateral for a security interest recorded Mar 3, 2016 (Citibank N.A.).
Lapsed Jul 21, 2019 on the fee record · High confidence
20-year base term ends Dec 19, 2026
First maintenance fee unpaid; grace period ended.
Held by Telecommunication Systems, Inc.
Filed May 21, 2012 as application 13/476,846 · Granted Jul 21, 2015
Base term, 20 years from filing, plus 12 days of patent term adjustment (USPTO delay)
Today
Lapsed Jul 21, 2019
2006
2026
Clock starts
Dec 19, 2006
Dec 19, 2006
No longer in force
Jul 21, 2019
Jul 21, 2019
Granted
Jul 21, 2015
Jul 21, 2015
Term would have run to
Dec 31, 2026
Dec 31, 2026
base term
after the term ends
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
12
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,805,483, US 8,185,567, US 8,244,802, US 8,516,043, to Dec 31, 2026. The term already ends on or before that date, so the cap shortened nothing.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
4
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 31, 2026: its 20-year base term plus 12 days of term adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 19, 2006, when application 11/640,860, the earliest non-provisional in its chain, was filed (this one was filed May 21, 2012) | Dec 19, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +12 days, USPTO patent term adjustment record | Dec 31, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,805,483, US 8,185,567, US 8,244,802, US 8,516,043) | resolves to Dec 31, 2026, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | lapsed Jul 21, 2019 | High confidence |
| Computed term end | The steps above, in order | Jul 21, 2019 | High confidence |
This family
| US 8,185,567 | In force Nov 2027 | Nov 2027 |
| Application PCT/US2007/000039 | PCT application no patent term | no patent term |
| US 9,087,132 | this patent Jul 2019 | Jul 2019 |
| US 9,467,816 | Lapsed on the fee record Oct 2020 | Oct 2020 |
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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jun 14, 2012 Reel 28375, frame 520 | Mitchell, JR., Donald le Roy | Telecommunication Systems, Inc. | Assignment of Assignor's Interest |
| Mar 3, 2016 Reel 37993, frame 1 | Comtech Ef Data Corp.; Comtech Xicom Technology, Inc.; Comtech Mobile Datacom Corporation; Telecommunication Systems, Inc. | Citibank N.a., As Administrative Agent | Security Agreement |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 12 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,805,483, US 8,185,567, US 8,244,802, US 8,516,043, ends no earlier than this term, so it caps nothing.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2015 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.