:SYSTem:LKEY:SOFTware:SUPPort:EXPiration:DATE?
Instrument:
                                                N1010A
                                                N1000A
                                                DCA-M
                                            Meas. mode:
                                                Scope
                                                Eye
                                                Jitter
                                                TDR
                                            Flex Apps:
                                                FlexDCA
                                                FlexRT
                                                FlexPLL
                                            Query Syntax
:SYSTem:LKEY:SOFTware:SUPPort:EXPiration:DATE? "<model number>"
Where <model number> is the feature/model number string that identifies a Manufacturing , Research and Development , or Signal Integrity package license.
Query Response
<year,month,day>
Description
For the specified license package model number, returns  software support expiration date in the form "year,month,day". For example, "2018,7,1". This is the date that the current licenses expires.  This string is located inside the package license file and is listed in the following table. 
| Parameter | Example Returned Feature/Model Number String | Description | 
|---|---|---|
| L-MFG | N1010200A | Manufacturing Package | 
| L-RND | N1010100A | Research and Development Package | 
| L-SNT | N1010300A | Signal Integrity Package | 
Requires FlexDCA revision A.05.80 and above.
Example Query
:SYSTem:LKEY:SOFTware:SUPPort:EXPiration:DATE? "N1010200A"