US3472915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing seemingly one-stage novolacs
Assignee: Monsanto Co
•
Filing: 1968-10-18
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Granted: 1969-10-14
•
Expires: 1988-10-18
Abstract
No abstract record available.
Inventors
- 👤 Stuart H Rider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:34
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/201; C08L; C08L61/00; C08L61/04; C08L61/06; C08J2361/00; C08J2361/04; C08J2361/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3020254A
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US3220172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |