US2620046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheetsx-sheet l
Assignee: —
•
Filing: —
•
Granted: 1952-12-02
•
Expires: 1969-12-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/02; G01N15/0272; A; A61; A61M; A61M11/00; A61M11/001; B; B01; B01D; B01D50/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE143446C
Cited
AT35295B
Cited
US1079153A
Cited
US1494675A
Cited
US1563125A
Cited
US1735694A
Cited
US1684020A
Cited
US2166574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |