US3498257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating razor blades
Assignee: Gillette Co LLC
•
Filing: 1964-10-05
•
Granted: 1970-03-03
•
Expires: 1984-10-05
Abstract
No abstract record available.
Inventors
- 👤 Philipp G Grefe
- 👤 Edward M Lewiecki
- 👤 Meyer J Shnitzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:46
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/58; C23C14/5806; B; B26; B26B; B26B21/00; B26B21/54; C21; C21D; C21D9/00; C21D9/18; C23C14/02; C23C14/021; C23C14/022; C23C14/22; C23C14/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2811130A
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US2811132A
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US2853400A
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US2960061A
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US2937976A
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US2977930A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |