US3527708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azeotropic composition
Assignee: Union Carbide Corp
•
Filing: 1968-10-30
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Granted: 1970-09-08
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Expires: 1988-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jared W Clark
- 👤 Charles E Rectenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:22
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/50; C11D7/5036; C11D7/5068; C11D7/5077; C11D7/5081; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C23; C23G; C23G5/00; C23G5/02; C23G5/032; C09K2205/00; C09K2205/10; C09K2205/102; C09K2205/108; C09K2205/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3431211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |