US3383658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Central to remote signalling system having counter controlled information transmission
Assignee: Siemens Mobility Ltd
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Filing: 1964-03-09
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Granted: 1968-05-14
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Martin John David
- 👤 Norton David John
- 👤 White Edgar Ian
- 👤 Ernest William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:43
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/125; G05D3/127; H; H04; H04Q; H04Q9/00; H04Q9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |