Patent US3742933A successfully refreshed from Google Patents.
Patent US1476538A successfully refreshed from Google Patents.
US1476538A
Expired / Lapsed
US
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Electrical apparatus for controlling indicators at a distance
Assignee: Evershed and Vignoles Ltd
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Filing: 1923-03-09
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Granted: 1923-12-04
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Expires: 1943-03-09
Abstract
No abstract record available.
Inventors
- 👤 Needham John Cuthbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:54
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22
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) | 1926-12-03 | 1927-06-04 | 1927-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-12-03 | 1931-06-04 | 1931-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-12-03 | 1935-06-04 | 1935-12-04 | $7700.00 | Window Closed / Lapsed |