US2997158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory bulk feeder
Assignee: Eriez Manufacturing Co
•
Filing: 1957-03-18
•
Granted: 1961-08-22
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Lester R Moskowitz
- 👤 Robert R Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:44
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/04; B06B1/045; B65; B65G; B65G27/00; B65G27/10; B65G27/16; B65G27/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2204379A
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US2407357A
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US2332600A
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US2387223A
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US2417715A
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US2444134A
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US2554538A
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US2634123A
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US2654256A
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US2854130A
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US2790097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |