Patent US2437191A successfully refreshed from Google Patents.
US2437191A
Expired / Lapsed
US
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Upsetting tool for hollow rivets
Assignee: Goodrich Corp
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Filing: 1941-12-24
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Granted: 1948-03-02
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Expires: 1961-12-24
Abstract
No abstract record available.
Inventors
- 👤 Ray H Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:04
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/0007; B25B27/0014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1829696A
Cited
US2053719A
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US2069907A
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GB451396A
Cited
US2170323A
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US2283665A
Cited
US2283708A
Cited
US2423956A
Cited
US2423957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |