Patent US1691798A successfully refreshed from Google Patents.
US1691798A
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US
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Indicator for elevators or the like
Assignee: ELEVATOR SUPPLIES CO Inc
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Filing: 1926-12-16
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Granted: 1928-11-13
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Expires: 1946-12-16
Abstract
No abstract record available.
Inventors
- 👤 Hugo F Cypser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:57
CPC Classifications
B; B66; B66B; B66B3/00; B66B3/02; B66B3/026
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) | 1931-11-13 | 1932-05-14 | 1932-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-13 | 1936-05-14 | 1936-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-13 | 1940-05-14 | 1940-11-13 | $7700.00 | Window Closed / Lapsed |