US2378113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper manufacture
Assignee: K C M Co
•
Filing: 1938-03-21
•
Granted: 1945-06-12
•
Expires: 1958-03-21
Abstract
No abstract record available.
Inventors
- 👤 Charles R Van De Carr Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/24; D21H23/26; D21H25/00; D21H25/08; D21H25/12; D21H25/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1948-06-11 | 1948-12-11 | 1949-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-11 | 1952-12-11 | 1953-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-11 | 1956-12-11 | 1957-06-12 | $7700.00 | Window Closed / Lapsed |