US2662284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife construction having a sliding blade
Assignee: Individual
•
Filing: 1949-04-20
•
Granted: 1953-12-15
•
Expires: 1969-04-20
Abstract
No abstract record available.
Inventors
- 👤 Philip H Unsinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:12
CPC Classifications
B; B26; B26B; B26B1/00; B26B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US242985A
Cited
US530913A
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US576862A
Cited
FR555048A
Cited
US1546709A
Cited
US1639441A
Cited
US2252896A
Cited
US2479855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |