US2638962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making corrugated paper
Assignee: Samuel M Langston Co
•
Filing: 1951-02-24
•
Granted: 1953-05-19
•
Expires: 1971-02-24
Abstract
No abstract record available.
Inventors
- 👤 Charles D Nitchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:08
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/20; B31F1/24; B31F1/26; B31F1/28; B31F1/2845; B31F1/2877
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US545354A
Cited
US972121A
Cited
US1179941A
Cited
US1180828A
Cited
US1327158A
Cited
US1855503A
Cited
GB380189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |