US3480674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-secondary-alkyl tertiary polyamine compounds
Assignee: Armour Industrial Chemical Co
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Filing: 1968-07-01
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Granted: 1969-11-25
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Expires: 1988-07-01
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Miller Jr
- 👤 Ago Mais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:41
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/01; C10M; C10M3/00; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3201472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |