Patent US2433684A successfully refreshed from Google Patents.
US2433684A
Expired / Lapsed
US
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Intermittent and automatic outflow of various materials
Assignee: Individual
•
Filing: 1938-08-04
•
Granted: 1947-12-30
•
Expires: 1958-08-04
Abstract
No abstract record available.
Inventors
- 👤 Damond Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:06
CPC Classifications
B; B61; B61C; B61C15/00; B61C15/08; B61C15/10; B61C15/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US467809A
Cited
US639625A
Cited
US796976A
Cited
US1432210A
Cited
US1495381A
Cited
DE416651C
Cited
US1853948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |