US2774068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diathermy applicators
Assignee: Raytheon Co
•
Filing: 1953-02-16
•
Granted: 1956-12-11
•
Expires: 1973-02-16
Abstract
No abstract record available.
Inventors
- 👤 Duane B Haagensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:43
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/02; A61N5/04; H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q13/0233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2408435A
Cited
US2605413A
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US2470016A
Cited
US2611867A
Cited
GB642825A
Cited
FR1014722A
Cited
US2658143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |