US3490422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water injector for internal combustion engines
Assignee: LLOYD Z BULLIS
•
Filing: 1968-05-08
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Granted: 1970-01-20
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Expires: 1988-05-08
Abstract
No abstract record available.
Inventors
- 👤 Lloyd Z Bullis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:57
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/022; F02M25/025; F02M25/03; F02M25/0221; F02M25/0225; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |