Patent US2889277A successfully refreshed from Google Patents.
Patent US2135204A successfully refreshed from Google Patents.
US2135204A
Expired / Lapsed
US
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Control system
Assignee: STALEY ELEVATOR CO Inc
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Filing: 1934-06-08
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Granted: 1938-11-01
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Expires: 1954-06-08
Abstract
No abstract record available.
Inventors
- 👤 Staley Marcellus
- 👤 Kramer Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:13
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/52; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1565; Y10T74/1566; Y10T74/1568; Y10T74/1569
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-10-31 | 1942-05-02 | 1942-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-31 | 1946-05-02 | 1946-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-31 | 1950-05-02 | 1950-11-01 | $7700.00 | Window Closed / Lapsed |