US2465258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter
Assignee: PRODUCTION INSTR Co
•
Filing: 1944-04-07
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Granted: 1949-03-22
•
Expires: 1964-04-07
Abstract
No abstract record available.
Inventors
- 👤 Martin L Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:52
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/04; G06M1/045; G06M1/28; G06M1/34; G06M1/346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US226626A
Cited
US1271992A
Cited
US2060674A
Cited
FR793383A
Cited
US2076409A
Cited
US2129979A
Cited
US2212870A
Cited
US2256581A
Cited
US2366422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |