US3012674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating screen structure
Assignee: Individual
•
Filing: 1958-06-16
•
Granted: 1961-12-12
•
Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Hoppe Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:52
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/46; B07B1/4609; B07B1/4672; B07B1/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE354143C
Cited
US910904A
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US1190221A
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FR724931A
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FR821870A
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US2314880A
Cited
US2837210A
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US2893442A
Cited
DE1017840B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |