US2873845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for article feeding mechanism
Assignee: AT&T Inc
•
Filing: 1957-01-18
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Granted: 1959-02-17
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Expires: 1977-01-18
Abstract
No abstract record available.
Inventors
- 👤 William J Kross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:59
CPC Classifications
B; B65; B65G; B65G23/00; B65G2811/00; B65G2811/09; B65G2811/091; B65G2811/093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |