US2822915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous flow conveyor
Assignee: BEAUMONT BIRCH CO
•
Filing: 1954-09-30
•
Granted: 1958-02-11
•
Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 John H Hampton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:12
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/14; B65G19/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367102A
Cited
US674480A
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US865837A
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US1214427A
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US1685112A
Cited
CH177087A
Cited
US2164124A
Cited
US2635734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |