US3453195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymers prepared by irradiating a halogen containing backbone copolymer with u.v. light in the presence of a vinyl monomer
Assignee: Hoechst AG
•
Filing: 1965-02-03
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Granted: 1969-07-01
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Expires: 1985-02-03
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Kuhne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:05
CPC Classifications
C; C08; C08F; C08F291/00; C08F291/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2666025A
Cited
US3019208A
Cited
US2873240A
Cited
US2940952A
Cited
US3257340A
Cited
US3281345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |