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US3092486A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for preparing an ammoniating solution containing urea and formaldehyde

Assignee: Honeywell International Inc
•
Filing: 1960-01-26
•
Granted: 1963-06-04
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Expires: 1980-01-26
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Abstract

No abstract record available.

Inventors

  • 👤 Charles E Waters
  • 👤 Charles H Hibbitts

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 13:14
CPC Classifications
C; C05; C05C; C05C1/00; C05G; C05G5/00; C05G5/20; C05G5/23

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2022672A Cited
US2255026A Cited
US2279200A Cited
US2255027A Cited
US2467212A Cited
US2592809A Cited
US2618546A Cited
US2766283A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-06-03 1966-12-03 1967-06-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-06-03 1970-12-03 1971-06-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-06-03 1974-12-03 1975-06-04 $7700.00 Window Closed / Lapsed

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