US2605072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral-drive magnetometer head
Assignee: Individual
•
Filing: 1944-07-06
•
Granted: 1952-07-29
•
Expires: 1964-07-06
Abstract
No abstract record available.
Inventors
- 👤 Norman E Klein
- 👤 Walter H Brattain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:13
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/0206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988521A
Cited
US2027393A
Cited
US2075797A
Cited
US2315167A
Cited
US2490628A
Cited
US2468554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |