US2775366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor blade container
Assignee: DURHAM ENDERS RAZOR CORP
•
Filing: 1950-04-29
•
Granted: 1956-12-25
•
Expires: 1970-04-29
Abstract
No abstract record available.
Inventors
- 👤 Oscar F Willhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:19
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/08; B65D83/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1911627A
Cited
FR767491A
Cited
US1092067A
Cited
US2094722A
Cited
US2131358A
Cited
US2321570A
Cited
US2326202A
Cited
US2363908A
Cited
US2514161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |