US2622200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Therapeutic device
Assignee: HERMAN S PIERCE
•
Filing: 1945-09-04
•
Granted: 1952-12-16
•
Expires: 1965-09-04
Abstract
No abstract record available.
Inventors
- 👤 Robert W Hodgson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:55
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/36003; A61N1/36014; A61N1/3603; A61N1/36034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1733614A
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US2115877A
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US2125732A
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GB464141A
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US2233596A
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US2254087A
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US2226706A
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US2295585A
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US2401647A
Cited
US2366307A
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US2444782A
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US2445933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |