US2526397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sifter closure for powder boxes
Assignee: F N BURT CO Inc
•
Filing: 1945-07-06
•
Granted: 1950-10-17
•
Expires: 1965-07-06
Abstract
No abstract record available.
Inventors
- 👤 Nyden Robert
- 👤 Harry K Dickerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:46
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/26; B65D47/261; B65D47/265; Y; Y10; Y10S; Y10S411/00; Y10S411/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US758309A
Cited
US1021479A
Cited
US1644989A
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US1487885A
Cited
US1668657A
Cited
US2266049A
Cited
US2327391A
Cited
US2394942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |