US3526503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoresist composition
Assignee: Eastman Kodak Co
•
Filing: 1967-03-08
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Granted: 1970-09-01
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Expires: 1987-03-08
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Dunham
- 👤 Donald L Fields
- 👤 Douglas G Borden
- 👤 Jerry B Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:37
CPC Classifications
C; C07; C07D; C07D455/00; C07D455/03; C07D455/04; G; G03; G03C; G03C1/00; G03C1/52; G03C1/54; G03F; G03F7/00; G03F7/004; G03F7/022; G03F7/09; G03F7/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB210862A
Cited
US3046120A
Cited
DE900172C
Cited
US3046113A
Cited
US2959482A
Cited
US2859112A
Cited
GB864011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |