Patent US3405014A successfully refreshed from Google Patents.
US3405014A
Expired / Lapsed
US
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Process for producing dyed chromate films on zinc and zinc alloys
Assignee: Mitsui Kinzoku Co Ltd
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Filing: 1964-07-30
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Granted: 1968-10-08
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Expires: 1984-07-30
Abstract
No abstract record available.
Inventors
- 👤 Kuwabara Kenji
- 👤 Ieyoshi Minoru
- 👤 Nakade Kazuhiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:21
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/82; C23C22/84; C23C22/05; C23C22/06; C23C22/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2393640A
Cited
US2497905A
Cited
US2502476A
Cited
US2559812A
Cited
US3147153A
Cited
US3159509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |