Patent US2980264A successfully refreshed from Google Patents.
US2980264A
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US
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Control system for a load positioning device
Assignee: Westinghouse Electric Corp
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Filing: 1957-06-12
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Granted: 1961-04-18
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Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Donald A Burt
- 👤 John W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:40
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C13/22; B66C13/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367332A
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US2082393A
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US2254285A
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US2382194A
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US2726774A
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US2707666A
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US2822929A
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US2857985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |