US2448934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slitting machine
Assignee: Eastman Kodak Co
•
Filing: 1946-04-15
•
Granted: 1948-09-07
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Expires: 1966-04-15
Abstract
No abstract record available.
Inventors
- 👤 Henry E Van Derhoef
- 👤 Malcolm P Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:50
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/24; B26D1/245; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6592; Y10T83/6596; Y10T83/6598; Y10T83/768; Y10T83/7793; Y10T83/7797; Y10T83/7801; Y10T83/7809; Y10T83/7822; Y10T83/7826
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US586808A
Cited
US1024409A
Cited
US1534257A
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US1678458A
Cited
US1807835A
Cited
US1774549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |