US2387759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing electrical condensers
Assignee: Individual
•
Filing: 1940-05-13
•
Granted: 1945-10-30
•
Expires: 1960-05-13
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Jarvis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:02
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T29/00; Y10T29/43; Y10T29/435; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31855
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) | 1948-10-29 | 1949-04-30 | 1949-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-29 | 1953-04-30 | 1953-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-29 | 1957-04-30 | 1957-10-30 | $7700.00 | Window Closed / Lapsed |