US2979145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the feeding of powder and like fluent materials
Assignee: Rose Brothers Gainsborough Ltd
•
Filing: 1955-05-20
•
Granted: 1961-04-11
•
Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
- 👤 Kay James Arthur
- 👤 Rose Alfred German
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/30; B65B1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050496A
Cited
US2232437A
Cited
US2597831A
Cited
US2616652A
Cited
US2678185A
Cited
US2726061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |