US2476645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency diathermy applicator
Assignee: Burdick Corp
•
Filing: 1946-11-27
•
Granted: 1949-07-19
•
Expires: 1966-11-27
Abstract
No abstract record available.
Inventors
- 👤 Wanzenberg Frederick Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:41
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US592030A
Cited
US1305104A
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US1697142A
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US1000294A
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US1109735A
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US1492821A
Cited
US1758213A
Cited
US2404283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |