US2945439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for expelling a mass
Assignee: Cook Electric Co
•
Filing: 1955-05-11
•
Granted: 1960-07-19
•
Expires: 1975-05-11
Abstract
No abstract record available.
Inventors
- 👤 Chester F Bilinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:45
CPC Classifications
F; F42; F42B; F42B10/00; F42B10/32; F42B10/48; F42B10/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1192479A
Cited
US1165846A
Cited
US1770954A
Cited
US1908243A
Cited
US2379203A
Cited
US2455845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |