US3429852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylenically unsaturated derivatives of benzophenone and crosslinkable polymers thereof
Assignee: Indopco Inc
•
Filing: 1967-03-30
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Granted: 1969-02-25
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Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 Martin Skoultchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:19
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/16; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/101; Y; Y10; Y10S; Y10S522/00; Y10S522/904; Y10S522/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3214492A
Cited
US3341493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |