US2805915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arsenic-boron compounds and method of inhibiting corrosion therewith
Assignee: CREST RES LAB Inc
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Filing: 1954-05-03
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Granted: 1957-09-10
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Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Gilson H Rohrback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:50
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/06; C01B35/02; C01B35/04; C01B35/08; C01B35/10; C01B35/12; C01B35/128; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/184; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
18 words
AN INHIBITOR OF ACID ATTACK AN FERROUS METAL SURFACES, COMPRISING A NEW CHEMICAL COMPOUND REPRESENTED BY THE 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) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |