Patent US2780862A successfully refreshed from Google Patents.
US2780862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable razor having easy cleaning sloping surfaces
Assignee: Individual
•
Filing: 1954-04-14
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Granted: 1957-02-12
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Expires: 1974-04-14
Abstract
No abstract record available.
Inventors
- 👤 Grathwohl Kenneth Tuthill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:50
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/02; B26B21/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US906203A
Cited
US1041397A
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US1135362A
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US1384328A
Cited
US1475940A
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US2306890A
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US2654148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |