Patent US2991674A successfully refreshed from Google Patents.
US2991674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube-expander hand tool
Assignee: E Z WAY Inc
•
Filing: 1960-04-18
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Granted: 1961-07-11
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Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Uhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:50
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/02; B21D41/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL54773C
Cited
US233797A
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US909182A
Cited
FR578864A
Cited
GB535304A
Cited
US2273741A
Cited
US2888847A
Cited
US2905226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |