US1521729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector method and apparatus
Assignee: CH Wheeler Manufacturing Co
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Filing: 1920-12-20
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Granted: 1925-01-06
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Expires: 1940-12-20
Abstract
No abstract record available.
Inventors
- 👤 Suczek Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:07
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/466; F01; F01B; F01B25/00; F01B2250/00; F01B2250/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-01-06 | 1928-07-07 | 1929-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-01-06 | 1932-07-07 | 1933-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-01-06 | 1936-07-07 | 1937-01-06 | $7700.00 | Window Closed / Lapsed |