Patent US2870310A successfully refreshed from Google Patents.
US2870310A
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US
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Indicator circuit arrangement
Assignee: US Philips Corp
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Filing: 1955-12-12
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Granted: 1959-01-20
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Expires: 1975-12-12
Abstract
No abstract record available.
Inventors
- 👤 Adrianus Johannes Wilhel Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:26
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; H; H10; H10F; H10F99/00; G01K1/024; G01K5/00; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/2033; G05D23/2034; G08; G08B; G08B17/00; G08B17/06; G08G; G08G1/00; G08G1/01; G08G1/04; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1203; H03B5/1231; H03B5/1296
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2402662A
Cited
US2696739A
Cited
US2757243A
Cited
US2731564A
Cited
US2702838A
Cited
FR1090759A
Cited
US2778942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |