US2998204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous web feeding system
Assignee: International Business Machines Corp
•
Filing: 1958-06-30
•
Granted: 1961-08-29
•
Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Francis W Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:50
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1857; B65H19/1873; B65H19/1842; B65H19/1852; B65H2301/00; B65H2301/40; B65H2301/46; B65H2301/461; B65H2301/4613; B65H2301/46132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2613042A
Cited
US2752984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |