Patent US3231507A successfully refreshed from Google Patents.
US3231507A
Expired / Lapsed
US
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Corrosion inhibitors for aqueous acids
Assignee: Dow Chemical Co
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Filing: 1960-04-21
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Granted: 1966-01-25
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Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Alvin F Beale
- 👤 Clare H Kucera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:28
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23G1/068; C09; C09K; C09K8/00; C09K8/54; C09K8/60; C09K8/62; C09K8/72; C09K8/74; C23F; C23F11/00; C23F11/04; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
15 words
AN AQUEOUS NON-OXIIDIZING ACID CONTAINING A PAIR OF ALKYLNOLS SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |