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US1614490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making carbon paper
Assignee: KEE LOX Manufacturing CO
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Filing: 1925-01-12
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Granted: 1927-01-18
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Expires: 1945-01-12
Abstract
No abstract record available.
Inventors
- 👤 George W Poorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:55
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10
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) | 1930-01-17 | 1930-07-19 | 1931-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-01-17 | 1934-07-19 | 1935-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-01-17 | 1938-07-19 | 1939-01-18 | $7700.00 | Window Closed / Lapsed |