Patent US2718254A successfully refreshed from Google Patents.
Patent US1658884A successfully refreshed from Google Patents.
US1658884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric knife
Assignee: Individual
•
Filing: 1927-02-07
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Granted: 1928-02-14
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Expires: 1947-02-07
Abstract
No abstract record available.
Inventors
- 👤 Cusick Margaret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:41
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-02-13 | 1931-08-15 | 1932-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-02-13 | 1935-08-15 | 1936-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-02-13 | 1939-08-15 | 1940-02-14 | $7700.00 | Window Closed / Lapsed |