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US2785772A
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US
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Elevator system
Assignee: Westinghouse Electric Corp
•
Filing: 1954-05-04
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Granted: 1957-03-19
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Expires: 1974-05-04
Abstract
No abstract record available.
Inventors
- 👤 Santini Danilo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:32
CPC Classifications
B; B66; B66B; B66B13/00; B66B13/02; B66B13/14; B66B13/143; B66B13/24; B66B13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1822152A
Cited
US2634828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |