Patent US2941292A successfully refreshed from Google Patents.
US2941292A
Expired / Lapsed
US
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Hollow handle knife
Assignee: IMP KNIFE Co Inc
•
Filing: 1957-11-13
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Granted: 1960-06-21
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Expires: 1977-11-13
Abstract
No abstract record available.
Inventors
- 👤 Felix A Mirando
- 👤 Waldemar J Elsdorfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:34
CPC Classifications
B; B26; B26B; B26B3/00; B26B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US70352A
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US338521A
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US388970A
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US526033A
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US689049A
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GB190706060A
Cited
US1541307A
Cited
US2285013A
Cited
US2440136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |