US3082137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for etching titanium
Assignee: Motors Liquidation Co
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Filing: 1958-12-03
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Granted: 1963-03-19
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Expires: 1978-12-03
Abstract
No abstract record available.
Inventors
- 👤 Boda Mitchell A La
- 👤 Charles R Wiese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:20
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/10; C23F1/14; C23F1/16; C23F1/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A METHOD OF CHEMICALLY MACHINING A METAL PART WHICH COMPRISES APPLYING AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF, IN ADDITION TO WATER, ABOUT 50 GRAMS POTASSIUM PERMANGANATE AND ABOUT 60 MILLILITERS CONCENTRATED HYDROFLUORIC ACID, RESPECTIVELY, FOR EACH 1500 MILLILITERS OF WATER IN THE SOLUTION TO A SURFACE OF A PART MADE OF TITANIUM BASE METAL TO CHEMICAL REMOVE METAL FROM SAID SURFACE TO FORM A PREDETERMINED CONFIGURATION.
References Cited (Backward Citations)
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US2847371A
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US2876144A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |