US2477013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric plug
Assignee: Raytheon Co
•
Filing: 1946-02-18
•
Granted: 1949-07-26
•
Expires: 1966-02-18
Abstract
No abstract record available.
Inventors
- 👤 Percy L Spencer
- 👤 Francis C Gratcyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:23
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/58; H01R2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1830597A
Cited
US2236435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |