US3524438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition circuit
Assignee: Tecumseh Products Co
•
Filing: 1967-11-17
•
Granted: 1970-08-18
•
Expires: 1987-11-17
Abstract
No abstract record available.
Inventors
- 👤 Douglas G Janisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:36
CPC Classifications
F; F02; F02P; F02P1/00; F02B; F02B75/00; F02B75/16; F02P1/08; F02P1/086; F02P5/00; F02P5/04; F02P5/145; F02P5/155; F02P5/1553; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
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) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |