Patent US2426714A successfully refreshed from Google Patents.
US2426714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube forming machine
Assignee: Individual
•
Filing: 1943-01-30
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Granted: 1947-09-02
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Expires: 1963-01-30
Abstract
No abstract record available.
Inventors
- 👤 Sonnenberg Rudolph
- 👤 Irvin L Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:21
CPC Classifications
B; B31; B31D; B31D1/00; B31D1/0043; B31D1/005; B31B; B31B2105/00; B31B2105/002; B31B2105/0022; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1038715A
Cited
US1254207A
Cited
US1922189A
Cited
US1873254A
Cited
US2090448A
Cited
US2324572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |