US2670422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric plug in decade resistance unit
Assignee: Goodyear Aircraft Corp
•
Filing: 1952-09-15
•
Granted: 1954-02-23
•
Expires: 1972-09-15
Abstract
No abstract record available.
Inventors
- 👤 Richard V Baum
- 👤 Charles D Morrill
- 👤 Irving B Osofsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:59
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/20; G01R1/203
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |