US1445102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flanged tube and method of attaching the same
Assignee: Detroit Pressed Steel Co
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Filing: 1922-04-10
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Granted: 1923-02-13
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Expires: 1942-04-10
Abstract
No abstract record available.
Inventors
- 👤 John W Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:05
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/06; Y; Y10; Y10S; Y10S152/00; Y10S152/13; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49492; Y10T29/49513; Y10T29/49517; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992
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) | 1926-02-12 | 1926-08-14 | 1927-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-02-12 | 1930-08-14 | 1931-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-02-12 | 1934-08-14 | 1935-02-13 | $7700.00 | Window Closed / Lapsed |