Patent US1902496A successfully refreshed from Google Patents.
US3767728A
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Coating compositions and solid surfaces coated therewith
Assignee: Air Products and Chemicals Inc
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Filing: 1971-02-12
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Granted: 1973-10-23
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Expires: 1991-02-12
Abstract
Abstract COPOLYMERS PREPARED FROM A FLUORINE-CONTAINING MONOMER AND AN ETHYLENICALLY UNSATURATED MONOMER CONTAINING AN AMIDE GROUP ARE REACTED WITH ALDEHYDE TO FORM THERMOSETTABLE POLYMERS. MIXTURES OF SUCH THERMOSETTABLE FLUORINE-CONTAINING COPOLYMERS WITH THERMOSETTABLE NON-FLUORINE-CONTAINING COPOLYMERS PROVIDE USEFUL RESINOUS COATING COMPOSITIONS FOR SOLID SUBSTRATES.
Inventors
- 👤 M Langsam
- 👤 G Mantell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:12
CPC Classifications
C; C08; C08F; C08F8/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |