US2989307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding apparatus
Assignee: International Business Machines Corp
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Filing: 1958-11-12
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Granted: 1961-06-20
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Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 James A Weidenhammer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:28
CPC Classifications
B; B65; B65H; B65H1/00; B65H1/08; B65H1/14; B65H1/18; B65H1/26; B65H1/30; G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/10; G06K13/103; B65H2701/00; B65H2701/10; B65H2701/19; B65H2701/1912; B65H2801/00; B65H2801/03; B65H2801/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191221465A
Cited
US1277139A
Cited
US1287202A
Cited
US2185947A
Cited
US2701136A
Cited
US2589428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |