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US1898742A
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Assignee: Benjamin Electric Manufacturing Co
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Filing: 1931-06-27
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Granted: 1933-02-21
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Expires: 1951-06-27
Abstract
No abstract record available.
Inventors
- 👤 Paul D Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:00
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/10; F21V17/16; F21V17/168; F21V17/20; Y; Y10; Y10S; Y10S292/00; Y10S292/49; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1418; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0917; Y10T292/20; Y10T292/205; Y10T292/212; Y10T292/216; Y10T292/28
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) | 1936-02-21 | 1936-08-22 | 1937-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-21 | 1940-08-22 | 1941-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-21 | 1944-08-22 | 1945-02-21 | $7700.00 | Window Closed / Lapsed |