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US2828554A
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Color-selecting devices
Assignee: Individual
•
Filing: 1955-11-22
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Granted: 1958-04-01
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Expires: 1975-11-22
Abstract
No abstract record available.
Inventors
- 👤 Harris William Melish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:45
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/52; G01J3/526
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1415712A
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US1871078A
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US2120499A
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US2105008A
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US2409285A
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US2499450A
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US2494072A
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US2634132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |