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US3520840A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of preparing water-soluble resins which are suitable as binding agents in coating compositions for the electrical deposition of coatings

Assignee: Synres Chemische Industrie NV
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Filing: 1968-03-06
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Granted: 1970-07-21
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Expires: 1988-03-06
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Abstract

No abstract record available.

Inventors

  • 👤 Adolf Adriaan Que

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 13:16
CPC Classifications
C; C09; C09F; C09F7/00; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/4423; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3300424A Cited
US3253938A Cited
US3200058A Cited
US3412056A Cited
US3369983A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-07-20 1974-01-19 1974-07-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-07-20 1978-01-19 1978-07-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-07-20 1982-01-19 1982-07-21 $7700.00 Window Closed / Lapsed

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