US3007780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium etching
Assignee: Titanium Metals Corp
•
Filing: 1958-03-20
•
Granted: 1961-11-07
•
Expires: 1978-03-20
Abstract
No abstract record available.
Inventors
- 👤 Jack M Beigay
- 👤 Donald R Zaremski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/10; C23F1/14; C23F1/16; C23F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PICKLING SOLUTION CONSISTING ESSENTIALLY OF BY WEIGHT FROM 5% TO 30% OF ACETIC ACID, AND FROM 0.5% TO 17% OF HYDROFLUORIC ACID BALANCE SUBSTANTIALLY ALL WATER.
Claim 2
Dependent Claim
27 words
A PICKLING SOLUTION CONSISTING ESSENTIALLY OF BY WEIGHT FROM 5% TO 30% OF ACETIC ACID, AND FROM 0.5% TO 17% OF HYDROFLUORIC ACID BALANCE SUBSTANTIALLY ALL WATER.
References Cited (Backward Citations)
GB589932A
Cited
US2734837A
Cited
US2828192A
Cited
US2724667A
Cited
US2847287A
Cited
US2871110A
Cited
US2913360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |