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US2748859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power groover
Assignee: Individual
•
Filing: 1953-04-15
•
Granted: 1956-06-05
•
Expires: 1973-04-15
Abstract
No abstract record available.
Inventors
- 👤 James A Myklebust
- 👤 Harry A Hanly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:50
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US64420A
Cited
US649905A
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US1605924A
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US1925498A
Cited
US1996176A
Cited
US1864903A
Cited
US1894347A
Cited
US1986587A
Cited
US1971582A
Cited
US2362967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |