US3489708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous alkali-sensitive polymeric blends for the protection of finished surfaces
Assignee: Monsanto Co
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Filing: 1967-03-07
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Granted: 1970-01-13
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Expires: 1987-03-07
Abstract
No abstract record available.
Inventors
- 👤 Robert A Isaksen
- 👤 Robert V De Shay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:54
CPC Classifications
C; C09; C09D; C09D131/00; C09D131/02; C09D131/04; C08; C08L; C08L71/00; C08L71/02
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |