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Patent US2436776A successfully refreshed from Google Patents.
US2436776A
Expired / Lapsed
US
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Reversible tube bender with side angle indicator
Assignee: Goodyear Aircraft Corp
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Filing: 1944-03-17
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Granted: 1948-02-24
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Expires: 1964-03-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas V Pearson
- 👤 Lahood Maynerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:49
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/02; B21D7/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US235534A
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US1309250A
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US807854A
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US1167538A
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US1264097A
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US1272552A
Cited
US1624804A
Cited
US1919839A
Cited
US2371695A
Cited
US2382745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |