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Patent US3156689A successfully refreshed from Google Patents.
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US3156689A Expired / Lapsed US ⏱️ 0.0 years remaining

1, 4-phenylene-bis

Assignee: Novartis Corp
•
Filing: 1963-04-04
•
Granted: 1964-11-10
•
Expires: 1983-04-04
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Abstract

No abstract record available.

Inventors

  • 👤 Dexter Martin
  • 👤 Knell Martin
  • 👤 Eric A Roskin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 08:32
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/32; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C09; C09K; C09K15/00; C09K15/04; C09K15/30; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10M133/00; C10M133/02; C10M133/38; C10M133/40; C10M133/42; C11; C11B; C11B5/00; C11B5/0071; C10M2201/00; C10M2201/04; C10M2201/041; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/105; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/222; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/086; C10M2219/087; C10M2219/089; C10M2219/09; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim 5 words
A COMPOUND OF THE FORMULA

References Cited (Backward Citations)

US2733243A Cited
US2742466A Cited
US2393755A Cited
US3060149A Cited
US3084163A Cited
US2944999A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-11-10 1968-05-11 1968-11-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-11-10 1972-05-11 1972-11-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-11-10 1976-05-11 1976-11-10 $7700.00 Window Closed / Lapsed

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