US2363208A
Expired / Lapsed
US
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Control device
Assignee: AT&T Inc
•
Filing: 1942-11-12
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Granted: 1944-11-21
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Expires: 1962-11-12
Abstract
No abstract record available.
Inventors
- 👤 John H Sulzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:03
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/21; G05B19/23; G05B2219/00; G05B2219/30; G05B2219/36; G05B2219/36366; G05B2219/41; G05B2219/41259; G05B2219/42; G05B2219/42212; G05B2219/50; G05B2219/50047; G05B2219/50249; Y; Y10; Y10S; Y10S100/00; Y10S100/918; Y10T; Y10T29/00; Y10T29/53; Y10T29/53004; Y10T29/53017; Y10T83/00; Y10T83/162; Y10T83/166; Y10T83/169; Y10T83/444; Y10T83/447; Y10T83/4539; Y10T83/647; Y10T83/654; Y10T83/6563; Y10T83/6564; Y10T83/869; Y10T83/8727; Y10T83/8732
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) | 1947-11-21 | 1948-05-22 | 1948-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-21 | 1952-05-22 | 1952-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-21 | 1956-05-22 | 1956-11-21 | $7700.00 | Window Closed / Lapsed |