US3573968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating solid substrates with para-xylylene polymers
Assignee: Union Carbide Corp
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Filing: 1968-01-22
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Granted: 1971-04-06
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Expires: 1988-01-22
Abstract
Abstract PARA-XYLYLENE POLYMER COATED SUBSTRATES EXHIBITING STRONG POLYMER-SUBSTRATE INTERFACIAL BONDS ARE OBTAINED BY DEPOSITION COATING THE SUBSTRATES TO A PARA-XYLYLENE POLYMER THICKNESS OF UP TO ABOUT 5 MICRONS AND THEREAFTER MAINTAINING THE COATED SUBSTRATE AT A TEMPERATURE OF FROM 100 TO 200*C. FOR AT LEAST 0.25 HOUR.
Inventors
- 👤 William E Loeb
- 👤 Harold B Robinson Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:34
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/60; C; C08; C08G; C08G61/00; C08G61/02; C08G61/025; B05D3/00; B05D3/02; B05D3/0254; B05D3/04; B05D3/0486; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/342; C08G2261/3424
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |