Patent US808958A successfully refreshed from Google Patents.
US808958A
Expired / Lapsed
US
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Spark-ignition system for explosion-engines.
Assignee: AUTOCOIL Co
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Filing: 1905-03-28
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Granted: 1906-01-02
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Expires: 1925-03-28
Abstract
No abstract record available.
Inventors
- 👤 Richard Varley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:25
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435
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) | 1909-01-01 | 1909-07-03 | 1910-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-01-01 | 1913-07-03 | 1914-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-01-01 | 1917-07-03 | 1918-01-02 | $7700.00 | Window Closed / Lapsed |