US3434997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novolak resins mixed with polyvinyl alcohol
Assignee: Dynamit Nobel AG
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Filing: 1967-03-30
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Granted: 1969-03-25
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Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 Kurt Schmoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:51
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/10; C08G8/28; C08L; C08L61/00; C08L61/04; C08L61/06; C08K; C08K5/00; C08K5/16; C08K5/17; C08L33/00; C08L33/24; C08L33/26; C08L47/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |