US2308432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for flanging or otherwise forming marginal edges of plates
Assignee: Individual
•
Filing: 1939-12-30
•
Granted: 1943-01-12
•
Expires: 1959-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:11
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/30; B21D51/32; B21D19/00; B21D19/02; B21D19/04; B21D19/043; Y; Y10; Y10S; Y10S29/00; Y10S29/066; Y10S72/00; Y10S72/703; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/302968; Y10T409/303416; Y10T409/303696
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) | 1946-01-11 | 1946-07-13 | 1947-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-11 | 1950-07-13 | 1951-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-11 | 1954-07-13 | 1955-01-12 | $7700.00 | Window Closed / Lapsed |