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Patent US2720697A successfully refreshed from Google Patents.
US2720697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable safety razor
Assignee: Individual
•
Filing: 1950-03-01
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Granted: 1955-10-18
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Expires: 1970-03-01
Abstract
No abstract record available.
Inventors
- 👤 Sandford W Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:05
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US840989A
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US919719A
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US952034A
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GB191008633A
Cited
US1158481A
Cited
GB115007A
Cited
US2053258A
Cited
US2347596A
Cited
US2542096A
Cited
US2465924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |