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Patent US2665336A successfully refreshed from Google Patents.
US2665336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical keyboard
Assignee: Individual
•
Filing: 1950-08-08
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Granted: 1954-01-05
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Expires: 1970-08-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Saykay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:42
CPC Classifications
H; H04; H04L; H04L17/00; H04L17/02; H04L17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB499900A
Cited
US2262321A
Cited
US2249122A
Cited
US2424481A
Cited
US2489576A
Cited
US2473419A
Cited
US2476066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |