Patent US2620848A successfully refreshed from Google Patents.
US2620848A
Expired / Lapsed
US
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Pipe bender
Assignee: Individual
•
Filing: 1949-08-08
•
Granted: 1952-12-09
•
Expires: 1969-08-08
Abstract
No abstract record available.
Inventors
- 👤 Paoli Louis De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:29
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02; B21D7/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1319987A
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US653704A
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US1136252A
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US1239165A
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US1353168A
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US1606096A
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US1816218A
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US1911028A
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FR793989A
Cited
US2357027A
Cited
US2485096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |