US2418858A
Expired / Lapsed
US
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Apparatus for making cellular masses
Assignee: Individual
•
Filing: 1943-03-18
•
Granted: 1947-04-15
•
Expires: 1963-03-18
Abstract
No abstract record available.
Inventors
- 👤 Urquhart Radcliffe Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:42
CPC Classifications
A; A62; A62C; A62C5/00; A62C5/002; Y; Y10; Y10S; Y10S261/00; Y10S261/26; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/2569
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB217199A
Cited
US1885785A
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GB340268A
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US2043599A
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US2073204A
Cited
US2146605A
Cited
US2164153A
Cited
US2188066A
Cited
US2183561A
Cited
US2234631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |