US3520792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of metal coatings
Assignee: Individual
•
Filing: 1966-06-23
•
Granted: 1970-07-14
•
Expires: 1986-06-23
Abstract
No abstract record available.
Inventors
- 👤 Johann Kerschgens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:20
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/10; C25D17/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US800791A
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FR976322A
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US2961395A
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US2798849A
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US3326793A
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US3294664A
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US3346477A
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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) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |