US2149805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical structure
Assignee: Bakelite Corp
•
Filing: 1935-10-31
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Granted: 1939-03-07
•
Expires: 1955-10-31
Abstract
No abstract record available.
Inventors
- 👤 William H Butler
- 👤 Edward H Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:08
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/48; H01B3/50; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947; Y10T428/31504; Y10T428/31844; Y10T428/31848; Y10T428/31851; Y10T442/00; Y10T442/20; Y10T442/2475
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) | 1942-03-06 | 1942-09-05 | 1943-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-06 | 1946-09-05 | 1947-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-06 | 1950-09-05 | 1951-03-07 | $7700.00 | Window Closed / Lapsed |