US2657807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Electric Auto Lite Co
•
Filing: 1947-12-26
•
Granted: 1953-11-03
•
Expires: 1967-12-26
Abstract
No abstract record available.
Inventors
- 👤 Launder James Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:15
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/22; A61K38/24; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/216; B01D29/88; B01D29/90; B01D29/902; B01D29/96; B01D35/14; B01D35/147; B01D2201/00; B01D2201/30; B01D2201/301; B01D2201/304; Y; Y10; Y10S; Y10S285/00; Y10S285/918
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |