Patent US3452728A successfully refreshed from Google Patents.
US3452728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition distributor for internal combustion engines
Assignee: Ducellier et Cie
•
Filing: 1967-10-09
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Granted: 1969-07-01
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Expires: 1987-10-09
Abstract
No abstract record available.
Inventors
- 👤 Roger Salomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:36
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/04; F02P5/145; F02P5/155; F02P5/1558; F02P5/05; F02P5/10; F02P5/103; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2596830A
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US2773141A
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FR1104717A
Cited
US2809619A
Cited
US2809620A
Cited
US3062929A
Cited
US3027884A
Cited
US3252450A
Cited
US3272191A
Cited
US3306272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |