US2431528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming test samples of electrolytic tin plate
Assignee: Individual
•
Filing: 1945-11-13
•
Granted: 1947-11-25
•
Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur Forest Wells
- 👤 Paul C Mackley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:36
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/04; Y; Y10; Y10S; Y10S83/00; Y10S83/919; Y10T; Y10T83/00; Y10T83/444; Y10T83/4534; Y10T83/4536; Y10T83/869; Y10T83/8696; Y10T83/8699; Y10T83/8735; Y10T83/8742; Y10T83/8743; Y10T83/8748
Claims Analysis
Total Claims: 0
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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) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |