US2518221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet positioning device for duplicating machines
Assignee: Ditto Inc
•
Filing: 1945-09-17
•
Granted: 1950-08-08
•
Expires: 1965-09-17
Abstract
No abstract record available.
Inventors
- 👤 John J Camphouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:39
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1713826A
Cited
US2246508A
Cited
US2231109A
Cited
US2267982A
Cited
US2299967A
Cited
US2288287A
Cited
US2364942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |