US2964187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plate sieve structure and method of producing same
Assignee: Rosenthal Isolatoren GmbH
•
Filing: 1958-02-13
•
Granted: 1960-12-13
•
Expires: 1978-02-13
Abstract
No abstract record available.
Inventors
- 👤 Erich O Riedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:51
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/48; B07B1/49; B07B1/4609
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189719998A
Cited
US1132047A
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US957187A
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US1220232A
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US1718385A
Cited
US1925460A
Cited
US2150889A
Cited
US2284883A
Cited
US2374775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |