Patent US3421992A successfully refreshed from Google Patents.
US3421992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating barrel
Assignee: Individual
•
Filing: 1965-06-24
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Granted: 1969-01-14
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Expires: 1985-06-24
Abstract
No abstract record available.
Inventors
- 👤 Anton Lazaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:29
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/16; C25D17/18; C25D17/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE277128C
Cited
US1790289A
Cited
US857027A
Cited
US1509534A
Cited
US1695795A
Cited
US3038851A
Cited
US3330753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |