US2445269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined injector nozzle and filter
Assignee: Ex-Cell-O Corp
•
Filing: 1944-05-06
•
Granted: 1948-07-13
•
Expires: 1964-05-06
Abstract
No abstract record available.
Inventors
- 👤 James F Hoffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:28
CPC Classifications
F; F02; F02M; F02M55/00; F02M55/02; F02M61/00; F02M61/04; F02M61/08; F02M61/16; F02M61/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US247151A
Cited
US1835047A
Cited
US2068837A
Cited
US2062362A
Cited
US2134413A
Cited
US2291218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |