IP Library › Patent Application 62439825
Patent Application Provisional Small
App. No. 62/439,825 · Confirmation No. 3981

Train Air Quality Monitoring Device

Inventors: Chang Zhang, Lei Liu
Provisional Application Expired
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 Code Description Pages PDF
2018-03-27 N572 Response - Re: Informal Power of Attorney (PTOL-308) 2 View
2018-03-27 PEFN Pre-Exam Formalities Notice 1 View
2018-03-23 PD.TO.AUTH Authorization or Rescission of Authorization to Access Application by Digital Access Service /Priority Document Exchange Office 2 View
2018-03-23 N417 Electronic Filing System Acknowledgment Receipt 3 View
2018-03-23 PA.. Power of Attorney 4 View
2018-03-23 R3.73 Assignee showing of ownership per 37 CFR 3.73 3 View
2018-03-23 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2018-03-23 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2018-03-22 PD.TO.AUTH Authorization or Rescission of Authorization to Access Application by Digital Access Service /Priority Document Exchange Office 1 View
2018-03-22 N417 Electronic Filing System Acknowledgment Receipt 2 View
2017-01-12 APP.FILE.REC Filing Receipt 3 View
2016-12-28 SPEC Specification 4 View
2016-12-28 CLM Claims 3 View
2016-12-28 TR.PROV Provisional Cover Sheet (SB16) 2 View
2016-12-28 WFEE Fee Worksheet (SB06) 2 View
2016-12-28 N417 Electronic Filing System Acknowledgment Receipt 3 View
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Quick Facts
App. No.
62/439,825
Filed
2016-12-28