US2867261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe bender with bend indicator means on pivotal reaction blocks
Assignee: Blackhawk Manufacturing Co
•
Filing: 1955-02-23
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Granted: 1959-01-06
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Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Traupmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:08
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1610196A
Cited
FR641531A
Cited
US1865025A
Cited
US1964550A
Cited
US2382266A
Cited
US2464459A
Cited
US2702578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |