US2427003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for flanging pipes inwardly or outwardly
Assignee: Individual
•
Filing: 1945-05-31
•
Granted: 1947-09-09
•
Expires: 1965-05-31
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:16
CPC Classifications
B; B21; B21D; B21D19/00; B21D19/02; B21D19/04; B21D19/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB134551A
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US729099A
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FR334812A
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US758145A
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GB191518201A
Cited
US1634057A
Cited
US1807980A
Cited
US2206296A
Cited
US2352816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |