US2691732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio frequency generator
Assignee: Westinghouse Electric Corp
•
Filing: 1948-12-07
•
Granted: 1954-10-12
•
Expires: 1968-12-07
Abstract
No abstract record available.
Inventors
- 👤 Boyd Bruce
- 👤 Sheldon I Rambo
- 👤 Richard H Hagopian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2218502A
Cited
US2175694A
Cited
US2431902A
Cited
US2415799A
Cited
US2609510A
Cited
US2587175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |