US2321057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of printing
Assignee: Interchemical Corp
•
Filing: 1939-10-25
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Granted: 1943-06-08
•
Expires: 1959-10-25
Abstract
No abstract record available.
Inventors
- 👤 Weiss Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/02; B41F13/04; B41F9/00; B41F9/003
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) | 1946-06-07 | 1946-12-07 | 1947-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-07 | 1950-12-07 | 1951-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-07 | 1954-12-07 | 1955-06-08 | $7700.00 | Window Closed / Lapsed |