US2437212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric condenser and method for making the same
Assignee: Individual
•
Filing: 1942-12-23
•
Granted: 1948-03-02
•
Expires: 1962-12-23
Abstract
No abstract record available.
Inventors
- 👤 Frederic D Schottland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:19
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49144; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12049; Y10T428/12056; Y10T428/12063; Y10T428/12139; Y10T428/1241; Y10T428/12417; Y10T428/12451; Y10T428/12486; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12618
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1706816A
Cited
US1721503A
Cited
US1479315A
Cited
US1811725A
Cited
US1568918A
Cited
US2157715A
Cited
US2141677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-02 | 1951-09-01 | 1952-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-02 | 1955-09-01 | 1956-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-02 | 1959-09-01 | 1960-03-02 | $7700.00 | Window Closed / Lapsed |