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Patent US2133183A successfully refreshed from Google Patents.
US2133183A
Expired / Lapsed
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Electrical insulation
Assignee: OI Glass Inc
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Filing: 1933-08-22
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Granted: 1938-10-11
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Expires: 1953-08-22
Abstract
No abstract record available.
Inventors
- 👤 Fred J Baird
- 👤 Allen L Simison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:46
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/08; H01B3/084; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/266; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T442/00; Y10T442/30; Y10T442/3008; Y10T442/3016; Y10T442/3033; Y10T442/3854; Y10T442/3911; Y10T442/50
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) | 1941-10-10 | 1942-04-11 | 1942-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-10 | 1946-04-11 | 1946-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-10 | 1950-04-11 | 1950-10-11 | $7700.00 | Window Closed / Lapsed |