US2288735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electrostatic shields
Assignee: Individual
•
Filing: 1939-11-08
•
Granted: 1942-07-07
•
Expires: 1959-11-08
Abstract
No abstract record available.
Inventors
- 👤 John J O'connell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:35
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02; E04F11/104; E04F11/16; H; H01; H01J; H01J9/00; H01J9/24; H01J9/30; H05; H05K; H05K3/00; H05K3/02; H05K3/04; H05K3/041; H05K9/00; H05K9/0007; H05K9/002; H05K9/0039; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09118; H05K2203/00; H05K2203/01; H05K2203/0104; H05K2203/0108; H05K3/10; H05K3/20; H05K3/202; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
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) | 1945-07-06 | 1946-01-05 | 1946-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-07-06 | 1950-01-05 | 1950-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-07-06 | 1954-01-05 | 1954-07-07 | $7700.00 | Window Closed / Lapsed |