US2622518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding means for duplicating machines
Assignee: Ditto Inc
•
Filing: 1945-01-18
•
Granted: 1952-12-23
•
Expires: 1965-01-18
Abstract
No abstract record available.
Inventors
- 👤 Eric W Peterson
- 👤 George J Rundblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:13
CPC Classifications
B; B65; B65H; B65H1/00; B65H1/04; B41; B41L; B41L21/00; B65H3/00; B65H3/02; B65H3/06; B65H3/0669
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22406E
Cited
US2222984A
Cited
US2260045A
Cited
US2204715A
Cited
US2260463A
Cited
US2268045A
Cited
US2299974A
Cited
US2343187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |