US2322367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon paper
Assignee: Interchemical Corp
•
Filing: 1941-06-03
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Granted: 1943-06-22
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Expires: 1961-06-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Kjellstrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:31
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
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) | 1946-06-21 | 1946-12-21 | 1947-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-21 | 1950-12-21 | 1951-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-21 | 1954-12-21 | 1955-06-22 | $7700.00 | Window Closed / Lapsed |