US2281407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making enameled containers
Assignee: PORCELAIN STEELS Inc
•
Filing: 1939-04-25
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Granted: 1942-04-28
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Expires: 1959-04-25
Abstract
No abstract record available.
Inventors
- 👤 John A Bohnsack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:55
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/24; Y; Y10; Y10S; Y10S220/00; Y10S220/917; Y10T; Y10T29/00; Y10T29/49; Y10T29/49394; Y10T29/49826; Y10T29/49888; Y10T409/00; Y10T409/50; Y10T409/50082; Y10T409/501476; Y10T409/50164; Y10T409/501804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-04-27 | 1945-10-27 | 1946-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-04-27 | 1949-10-27 | 1950-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-04-27 | 1953-10-27 | 1954-04-28 | $7700.00 | Window Closed / Lapsed |