Patent US2903597A successfully refreshed from Google Patents.
US2903597A
Expired / Lapsed
US
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Flying spot scanning system for particle counting apparatus
Assignee: US Philips Corp
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Filing: 1954-01-28
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Granted: 1959-09-08
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Expires: 1974-01-28
Abstract
No abstract record available.
Inventors
- 👤 Dell Hugh Alexander
- 👤 Snelling Michael Antony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:44
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/257; G; G06; G06M; G06M11/00; G06M11/02; G06M11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1410557A
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US1638472A
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US2237440A
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US2415190A
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US2494441A
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US2791377A
Cited
US2750519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |