US2519509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting mechanism for testing apparatus
Assignee: Individual
•
Filing: 1944-10-31
•
Granted: 1950-08-22
•
Expires: 1964-10-31
Abstract
No abstract record available.
Inventors
- 👤 Frank G Schrader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:36
CPC Classifications
B; B01; B01L; B01L9/00; G; G01; G01N; G01N7/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE435547C
Cited
US845739A
Cited
US1526151A
Cited
US2043140A
Cited
US2091858A
Cited
US2202265A
Cited
US2291999A
Cited
US2252146A
Cited
US2323556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |