US3772208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor containing the ethynylation reaction product of butyraldehyde with acetylene
Assignee: Air Products and Chemicals Inc
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Filing: 1971-08-31
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Granted: 1973-11-13
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Expires: 1991-08-31
Abstract
Abstract A CORROSION INHIBITOR, HAVING PARTICULAR UTILITY IN CONNECTION WITH AQUEOUS SOLUTIONS OF MINERAL ACIDS, COMPRISES THE REACTION PRODUCT OBTAINED BY THE EHTYNYLATION OF BUTYRALDEHYDE WITH ACETYLENE. THIS REACTION PRODUCT IS A COMPLEX MATERIAL WHICH CONTAINS, INTER ALIA, 1-HEXYN3-OL AND 5-DECYN-4,7 DIOL.
Inventors
- 👤 R Tedeschi
- 👤 P Natali
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:06
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C23F11/04; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23G1/068; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 0
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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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |