US2738470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed-off microwave gas cell
Assignee: RCA Corp
•
Filing: 1950-11-17
•
Granted: 1956-03-13
•
Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 Lowell E Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:20
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/26; H01; H01P; H01P1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2487547A
Cited
US2471744A
Cited
US2401425A
Cited
US2475035A
Cited
US2457673A
Cited
US2602858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |