USPatentGranted
I4

Oil-free, pressure sensitive adhesive

Granted 3 Oct 1978 · no office action yet

Current assignee: Shell Oil Company · originally Shell plc

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: George T. Coker, Jr., David R. Hansen · Examiner: · AU 142 · TC 1400

Application
873819
filed 31 Jan 1978
Publication
Not published
not published
Patent· this page
US T975004
granted 3 Oct 1978

Life of the patent

2 dated events
⤢ drag to zoom1978FebMarAprMayJunJulAugSepOctNovDecProsecution
Prosecutionhover for detail · click to open

Abstract

an oil-free, pressure sensitive adhesive composition comprises a monoalkenyl arene/isoprene block copolymer, a tackifying resin compatible with the isoprene block and a predominately aromatic second resin compatible with the monoalkenyl arene block. These adhesive compositions possess excellent adhesive properties along with a lower melt viscosity and lower cost.

Classifications

3 codes
IPC · International Patent Classification
Section C — Chemistry; metallurgy
  • C09J153/02
USPC · US Patent Classification
260/829260/876.B

Claim changes

Soon
Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

Pendency
0.7 y
245 days filing → grant
Office actions
0
on the grant's record
Citations: 0 back · 0 forward

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Log in to unlock

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Log in to unlock

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.

Log in to unlock