Patent US2863959A successfully refreshed from Google Patents.
US2863959A
Expired / Lapsed
US
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Device comprising one or more push buttons
Assignee: US Philips Corp
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Filing: 1955-07-20
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Granted: 1958-12-09
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Expires: 1975-07-20
Abstract
No abstract record available.
Inventors
- 👤 Lampe Friedrich
- 👤 Laa Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:21
CPC Classifications
H; H03; H03J; H03J5/00; H03J5/24; H03J5/26; H03J5/32; H01; H01H; H01H13/00; H01H13/50; H01H13/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316372A
Cited
US1158355A
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US1559427A
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US2156946A
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US2445635A
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US2453035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |