Patent US2586391A successfully refreshed from Google Patents.
US2586391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for projection of microwave images
Assignee: Individual
•
Filing: 1947-07-08
•
Granted: 1952-02-19
•
Expires: 1967-07-08
Abstract
No abstract record available.
Inventors
- 👤 Sheldon Edward Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:36
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/58; H01J31/60; H01J31/62; H01J31/64; G; G01; G01S; G01S7/00; G01S7/003
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1720654A
Cited
GB315362A
Cited
US2155471A
Cited
US2248977A
Cited
US2153614A
Cited
US2158853A
Cited
US2198479A
Cited
US2237679A
Cited
US2244720A
Cited
US2428351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |