Patent US2333523A successfully refreshed from Google Patents.
US2333523A
Expired / Lapsed
US
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Loose-leaf binder and brief case
Assignee: Individual
•
Filing: 1942-03-21
•
Granted: 1943-11-02
•
Expires: 1962-03-21
Abstract
No abstract record available.
Inventors
- 👤 Homer H Cohun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:28
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/0006; B42F13/0033; Y; Y10; Y10S; Y10S190/00; Y10S190/90; Y10S190/901; Y10S190/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-11-01 | 1947-05-03 | 1947-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-01 | 1951-05-03 | 1951-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-01 | 1955-05-03 | 1955-11-02 | $7700.00 | Window Closed / Lapsed |