Patent US3440427A successfully refreshed from Google Patents.
US3440427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control system with a unitary cell bridge circuit
Assignee: US Philips Corp
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Filing: 1966-04-12
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Granted: 1969-04-22
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Expires: 1986-04-12
Abstract
No abstract record available.
Inventors
- 👤 Franz Kammer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:47
CPC Classifications
G; G08; G08C; G08C23/00; G08C23/04; G01; G01J; G01J4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2140368A
Cited
US2362832A
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US2999240A
Cited
US3270206A
Cited
US3272065A
Cited
US3248549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |