Patent US4160801A successfully refreshed from Google Patents.
Patent US2428318A successfully refreshed from Google Patents.
US2428318A
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Electrolytic deposition of rustproof coatings
Assignee: Individual
•
Filing: 1942-03-09
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Granted: 1947-09-30
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Expires: 1962-03-09
Abstract
No abstract record available.
Inventors
- 👤 John S Nachtman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:00
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12701; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12937
Claims Analysis
Total Claims: 0
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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) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |