US3362861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electrical insulation of wound layers of paper and dry resin film
Assignee: Bushing Co Ltd
•
Filing: 1965-04-21
•
Granted: 1968-01-09
•
Expires: 1985-04-21
Abstract
No abstract record available.
Inventors
- 👤 Barker Harry
- 👤 Rothwell Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:48
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; B; B29; B29C; B29C63/00; B32; B32B; B32B27/00; D; D07; D07B; D07B7/00; D07B7/02; D07B7/14; H01B3/00; H01B3/008; H01B3/18; H01B3/48; H01B3/485; B29L; B29L2009/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735970A
Cited
US2181035A
Cited
GB562667A
Cited
US2516864A
Cited
US2922734A
Cited
US2995688A
Cited
US3185759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |