US2669017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor head
Assignee: MIN TSUBOTA
•
Filing: 1950-11-18
•
Granted: 1954-02-16
•
Expires: 1970-11-18
Abstract
No abstract record available.
Inventors
- 👤 Seko Kaichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:29
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE403112C
Cited
US939400A
Cited
US995626A
Cited
US1167530A
Cited
GB134318A
Cited
US1339265A
Cited
US1374330A
Cited
US1451941A
Cited
US1420581A
Cited
US1831017A
Cited
US1844036A
Cited
US2139680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |