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US3433843A Expired / Lapsed US ⏱️ 0.0 years remaining

Selective hydrogenation of trans,cis-1,5-cyclodecadiene to cis-cyclodecene

Assignee: Universal Oil Products Co
•
Filing: 1967-10-09
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Granted: 1969-03-18
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Expires: 1987-10-09
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Abstract

No abstract record available.

Inventors

  • 👤 James Hoekstra

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 21:20
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/02; C07C13/271; C07C5/00; C07C5/02; C07C5/03; C07C5/05; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44; C07C2601/00; C07C2601/18

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3360577A Cited
US3285983A Cited
US3294853A Cited
US3296320A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-03-17 1972-09-16 1973-03-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-03-17 1976-09-16 1977-03-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-03-17 1980-09-16 1981-03-18 $7700.00 Window Closed / Lapsed

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