US2222615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Utilization of electrostatic fields
Assignee: United Shoe Machinery Corp
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Filing: 1939-03-09
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Granted: 1940-11-26
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Expires: 1959-03-09
Abstract
No abstract record available.
Inventors
- 👤 Jr George T Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:03
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/10; A43; A43D; A43D25/00; A43D25/06; A43D25/20; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-11-26 | 1944-05-27 | 1944-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-26 | 1948-05-27 | 1948-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-26 | 1952-05-27 | 1952-11-26 | $7700.00 | Window Closed / Lapsed |