US3544655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylene oxide copolymers with 0.01 to 2.0 percent of a polyepoxide
Assignee: Dow Chemical Co
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Filing: 1968-07-08
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Granted: 1970-12-01
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Expires: 1988-07-08
Abstract
No abstract record available.
Inventors
- 👤 Llewellyn D Booth
- 👤 Ralph R Langner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/18; C08G59/20; C08G65/06; C08G65/26
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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |