Patent US2920792A successfully refreshed from Google Patents.
US2920792A
Expired / Lapsed
US
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Intermittent article feed apparatus
Assignee: AT&T Inc
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Filing: 1957-05-07
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Granted: 1960-01-12
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Expires: 1977-05-07
Abstract
No abstract record available.
Inventors
- 👤 Robert A Lancaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:41
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/0024; B; B65; B65G; B65G25/00; B65G25/04; B65G25/08; F27D2003/0001; F27D2003/0002; F27D2003/0014; F27D2003/0015; F27D3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US972649A
Cited
US1116849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |