US2771174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor transfer
Assignee: CBS Broadcasting Inc
•
Filing: 1953-02-16
•
Granted: 1956-11-20
•
Expires: 1973-02-16
Abstract
No abstract record available.
Inventors
- 👤 Christofferson James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:44
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/60; B65G47/61
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1459524A
Cited
US1580745A
Cited
US1454675A
Cited
US1753560A
Cited
US2337581A
Cited
US2612981A
Cited
US5285558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |