US3825434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally coated reaction vessel and process for coating the same
Assignee: Goodrich Corp
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Filing: 1972-10-27
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Granted: 1974-07-23
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Expires: 1992-10-27
Abstract
Abstract A REACTION VESSEL HAVING ON THE INTERNAL SURFACES THEREOF AN ADHESIVE PRIMER COATING CONTAINING, FOR EXAMPLE, A PHENOLIC RESIN, AND AN INSOLUBILIZED HYDROPHILIC FILM OR COATING OVER SAID PRIMER COATING CONTAINING, FOR EXAMPLE, A GLYOXAL CROSS-LINKED POLYVINYL ALCOHOL AND THE PROCESS FOR COATING SAID INTERNAL SURFACES WHEREBY POLYMER BUILDUP ON SAID INTERNAL SURFACES IS SUBSTANTIALLY DECREASED.
Inventors
- 👤 A Berens
- 👤 T Paxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:31
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; C; C08; C08F; C08F2/00; C08F2/002; C08F2/004
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |