Patent US1476750A successfully refreshed from Google Patents.
Patent US3422804A successfully refreshed from Google Patents.
US3422804A
Expired / Lapsed
US
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Ignition system
Assignee: WILLIAM C J VAN MASTRIGHT
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Filing: 1966-05-09
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Granted: 1969-01-21
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 William C J Van Mastright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:50
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435; F02P7/00; F02P7/06; F02P7/073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2084267A
Cited
US3235742A
Cited
US3144012A
Cited
US3297009A
Cited
US3237620A
Cited
US3324351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |