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US1350884A
Expired / Lapsed
US
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Razor-sharpener
Assignee: Individual
•
Filing: 1919-01-13
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Granted: 1920-08-24
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Expires: 1939-01-13
Abstract
No abstract record available.
Inventors
- 👤 Rogowski Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:12
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/06; B24D15/08; B24D15/088
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) | 1923-08-24 | 1924-02-23 | 1924-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-08-24 | 1928-02-23 | 1928-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-08-24 | 1932-02-23 | 1932-08-24 | $7700.00 | Window Closed / Lapsed |