US3280097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitors
Assignee: Zeneca Inc
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Filing: 1964-05-04
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Granted: 1966-10-18
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Cizek Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:51
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/173; C09; C09K; C09K8/00; C09K8/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A COMPOSITION OF MATTER WHICH IS THE REACTION PRODUCT OF (1) FROM ABOUT ONE TO ABOUT 300 MOLES OF AN ALKYLENE OXIDE AND (2) A MOLE OF A POLYAMINE CONDENSATION PRODUCT CHARACTERIZED BY THE GENARALIZED FORMULA
Claim 2
Dependent Claim
36 words
A COMPOSITION OF MATTER WHICH IS THE REACTION PRODUCT OF (1) FROM ABOUT ONE TO ABOUT 300 MOLES OF AN ALKYLENE OXIDE AND (2) A MOLE OF A POLYAMINE CONDENSATION PRODUCT CHARACTERIZED BY THE GENARALIZED FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |