US2694994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air operated ejector for presses
Assignee: COOPER WEYMOUTH Inc
•
Filing: 1950-05-27
•
Granted: 1954-11-23
•
Expires: 1970-05-27
Abstract
No abstract record available.
Inventors
- 👤 George J Weymouth
- 👤 William C Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:51
CPC Classifications
B; B21; B21D; B21D45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1774905A
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US2021580A
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US2122648A
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US2071752A
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US2173358A
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US2275561A
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US2349502A
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US2367515A
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US2482280A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |