US2443341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch tray
Assignee: C M Drinkwater & Co
•
Filing: 1945-03-02
•
Granted: 1948-06-15
•
Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 Burton B Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:05
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/02; A23G3/0236; A23G3/0252; A23G3/0268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US501088A
Cited
US1169602A
Cited
US1475573A
Cited
US1656685A
Cited
US1947055A
Cited
US2102437A
Cited
US2343936A
Cited
DK47295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |