US3022022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll changer
Assignee: Individual
•
Filing: 1959-12-23
•
Granted: 1962-02-20
•
Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 Armistead C Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:29
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1857; B65H19/1868; B65H19/1805; B65H19/181; B65H19/1821; B65H19/1842; B65H19/1852; B65H19/1884; B65H19/1894; B65H2301/00; B65H2301/40; B65H2301/46; B65H2301/463; B65H2301/4633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US769659A
Cited
US1449093A
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US1716812A
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GB244171A
Cited
US1945670A
Cited
US2017343A
Cited
US2218352A
Cited
US2561146A
Cited
US2703682A
Cited
US2929572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |