US2640877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave guide elbow joint
Assignee: General Electric Co
•
Filing: 1948-04-14
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Granted: 1953-06-02
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Expires: 1968-04-14
Abstract
No abstract record available.
Inventors
- 👤 Charles W Miller
- 👤 Saxon Godfrey
- 👤 Michael C Crowley-Milling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:24
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/02; H01P1/022; H01P1/027
Claims Analysis
Total Claims: 0
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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) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |