US3487048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of water soluble or water dispersible methylated melamine-formaldehyde resins consisting largely of tri-methyl ether of tri-methylol melamine
Assignee: Owens Corning Canada Inc
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Filing: 1968-04-30
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Granted: 1969-12-30
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Expires: 1988-04-30
Abstract
No abstract record available.
Inventors
- 👤 Hendrik H Deuzeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:52
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/42; C08G12/424; C08G12/425; C08G12/427; C08G12/26; C08G12/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3322762A
Cited
US3394093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |