US2656167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charge forming device
Assignee: Tillotson Manufacturing Co
•
Filing: 1950-02-06
•
Granted: 1953-10-20
•
Expires: 1970-02-06
Abstract
No abstract record available.
Inventors
- 👤 Bernard C Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:20
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M7/18; F02M17/00; F02M17/44; F02M17/48; F02M3/00; F02M3/08; F02M5/00; F02M5/12; Y; Y10; Y10S; Y10S261/00; Y10S261/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1505565A
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US1299454A
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US1453490A
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US1523095A
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US1632279A
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US1758954A
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US1742376A
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US1733730A
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US1741401A
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US1823017A
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US2038206A
Cited
US2093011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |