US3499009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyols of methylenedianilines
Assignee: Pharmacia and Upjohn Co
•
Filing: 1965-09-27
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Granted: 1970-03-03
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Alec Odinak
- 👤 Harold E Reymore Jr
- 👤 Adnan A R Sayigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:27
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/546; C08G18/48; C08G18/50; C08G18/5021; C08G18/5033; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G2110/00; C08G2110/0008; C08G2110/0016; C08G2110/0025; C08G2110/0041; C08G2110/005; C08G2110/0083
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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |