US2994529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet stacking device
Assignee: Unisys Corp
•
Filing: 1957-04-18
•
Granted: 1961-08-01
•
Expires: 1977-04-18
Abstract
No abstract record available.
Inventors
- 👤 Matthew J Relis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:21
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1942172A
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US2144084A
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US2352926A
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US2381719A
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US2579541A
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US2684241A
Cited
US2702190A
Cited
US2767534A
Cited
US2796259A
Cited
US2844373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |