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US2479922A
Expired / Lapsed
US
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Electrical timer
Assignee: R W CRAMER Co Inc
•
Filing: 1945-07-17
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Granted: 1949-08-23
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Expires: 1965-07-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Eugene H Gates
- 👤 John J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:19
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/16; G04C21/20; G04C21/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2388686A
Cited
US2163419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |