Patent US3458839A successfully refreshed from Google Patents.
US3458839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking reed and ball switches and matrices
Assignee: US Philips Corp
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Filing: 1967-03-27
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Granted: 1969-07-29
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Alphonsus Heetman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:00
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H51/284; H01H51/285; H01H51/288; H01H67/00; H01H67/22; H01H67/24; H01H67/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3289129A
Cited
US3284741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |