Patent US2666701A successfully refreshed from Google Patents.
US2666701A
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Optical sensitization of photomechanical resists
Assignee: Eastman Kodak Co
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Filing: 1952-10-15
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Granted: 1954-01-19
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Expires: 1972-10-15
Abstract
No abstract record available.
Inventors
- 👤 West William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:15
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/031; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/12; Y10S430/121; Y10S430/127; Y10S522/00; Y10S522/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A PHOTOMECHANICAL RESIST COMPOSITION COMPRISING AS THE LIGHT-SENSITIVE MATERIAL A KETONE SELECTED FROM THE GROUP CONSISTING OF THOSE KETONES REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
Claim 2
Dependent Claim
25 words
A PHOTOMECHANICAL RESIST COMPOSITION COMPRISING AS THE LIGHT-SENSITIVE MATERIAL A KETONE SELECTED FROM THE GROUP CONSISTING OF THOSE KETONES REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
References Cited (Backward Citations)
US1587274A
Cited
GB573798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |