US2432982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductive coupling
Assignee: Sperry Gyroscope Co Inc
•
Filing: 1942-11-11
•
Granted: 1947-12-23
•
Expires: 1962-11-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick D Braddon
- 👤 Lanty Loren J De
- 👤 Orland E Esval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:27
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1394901A
Cited
US2049232A
Cited
US2087636A
Cited
DE658259C
Cited
US2126935A
Cited
US2220055A
Cited
US2221767A
Cited
US2283940A
Cited
US2242360A
Cited
US2313682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-22 | 1951-06-23 | 1951-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-22 | 1955-06-23 | 1955-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-22 | 1959-06-23 | 1959-12-23 | $7700.00 | Window Closed / Lapsed |