US2448357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel facing
Assignee: Paper Patents Co
•
Filing: 1945-11-29
•
Granted: 1948-08-31
•
Expires: 1965-11-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Craig
- 👤 Richard J Auchter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:53
CPC Classifications
B; B32; B32B; B32B27/00; D; D21; D21H; D21H27/00; D21H27/18; D21H27/22; D21H27/24; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31946; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2118549A
Cited
US2343740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |