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Patent US2720337A successfully refreshed from Google Patents.
US2720337A
Expired / Lapsed
US
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Device for the controlled discharge of articles from a storage container or the like
Assignee: Individual
•
Filing: 1951-06-12
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Granted: 1955-10-11
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 John A Chater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:07
CPC Classifications
G; G07; G07F; G07F11/00; G07F11/02; G07F11/38; G07F11/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1708407A
Cited
US2581216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |