US3499847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for controlling the molecular weight of ultrahigh molecular weight oxyalkylene - containing polymers from alkylene oxides free of groups other than oxirane groups
Assignee: Baker Petrolite LLC
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Filing: 1966-08-08
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Granted: 1970-03-10
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Franklin E Mange
- 👤 Rudolf S Buriks
- 👤 Allen R Fauke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:05
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/2654; C10; C10G; C10G33/00; C10G33/04
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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |