US2856223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom discharge bucket
Assignee: Ben C Gerwick Inc
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Filing: 1955-03-30
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Granted: 1958-10-14
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Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Donald B Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:54
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/02; E04G21/025; B; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/582; B65D90/62; B65D90/623; B65D2590/00; B65D2590/54; B65D2590/547
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |