US2497604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for eliminating electrostatic charges in industrial processes
Assignee: British Cotton Industry Research Association
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Filing: 1947-07-15
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Granted: 1950-02-14
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Expires: 1967-07-15
Abstract
No abstract record available.
Inventors
- 👤 Henry Philip Sidney Hillard
- 👤 Mcdonald Ian Grant
- 👤 Todd John Browning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:47
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |