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US2303283A
Expired / Lapsed
US
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Electrically insulating bodies
Assignee: A Reyrolle and Co Ltd
•
Filing: 1939-06-13
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Granted: 1942-11-24
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Expires: 1959-06-13
Abstract
No abstract record available.
Inventors
- 👤 Kirkwood Ian Ward Anderson
- 👤 Ritchie Patrick Dunbar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/28; H01G; H01G4/00; H01G4/002; H01G4/228; H01G4/242; H01G4/32; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49002; Y10T29/49227
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) | 1945-11-23 | 1946-05-25 | 1946-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-23 | 1950-05-25 | 1950-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-23 | 1954-05-25 | 1954-11-24 | $7700.00 | Window Closed / Lapsed |