Patent US2752028A successfully refreshed from Google Patents.
US2752028A
Expired / Lapsed
US
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Orienting device
Assignee: RCA Corp
•
Filing: 1952-06-28
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Granted: 1956-06-26
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Expires: 1972-06-28
Abstract
No abstract record available.
Inventors
- 👤 Lester R Moskowitz
- 👤 Roger E Schell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/24; B65G47/248; B65G47/252; B65G2201/00; B65G2201/02; B65G2201/0235; B65G2201/0244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US81404A
Cited
US896573A
Cited
US1181230A
Cited
US1658428A
Cited
GB279119A
Cited
US2252498A
Cited
US2609914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |