Patent US412940A successfully refreshed from Google Patents.
Patent US3341434A successfully refreshed from Google Patents.
US3341434A
Expired / Lapsed
US
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Electrodeposition of chromium
Assignee: M&T Chemicals Inc
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Filing: 1963-09-24
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Granted: 1967-09-12
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Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Passal Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:05
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/08; C25; C25D; C25D3/00; C25D3/02; C25D3/04; C25D3/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
IN THE PROCESS FOR ELECTROPLATING CHROMIUM FROM A CHROMIUM PLATING BATH, THE IMPROVEMENT WHICH COMPRISES MAINTAINING IN SAID BATH ABOUT 0.001-0.2 G./L. OF A COMPOUND HAVING THE FORMULA
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |