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Patent US1587806A successfully refreshed from Google Patents.
US1587806A
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Feeding and rotating means for electrodes
Assignee: Sperry Gyroscope Co Ltd
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Filing: 1918-03-26
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Granted: 1926-06-08
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Expires: 1938-03-26
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
H; H05; H05B; H05B31/00; H05B31/003; H05B31/0039; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437
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) | 1929-06-07 | 1929-12-07 | 1930-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-06-07 | 1933-12-07 | 1934-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-06-07 | 1937-12-07 | 1938-06-08 | $7700.00 | Window Closed / Lapsed |