US2566430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for laboratory filtering apparatus or the like
Assignee: Precision Scientific Co
•
Filing: 1948-01-26
•
Granted: 1951-09-04
•
Expires: 1968-01-26
Abstract
No abstract record available.
Inventors
- 👤 Winfield B Sobers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:32
CPC Classifications
B; B01; B01L; B01L9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US169348A
Cited
US615032A
Cited
GB189514448A
Cited
US732227A
Cited
US1097708A
Cited
US1203818A
Cited
US1890939A
Cited
US2186432A
Cited
US2281849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |