US3444085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azeotropic composition
Assignee: EIDP Inc
•
Filing: 1966-07-28
•
Granted: 1969-05-13
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Expires: 1986-07-28
Abstract
No abstract record available.
Inventors
- 👤 Bernhardt J Eiseman Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:38
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K5/045; C09K2205/00; C09K2205/10; C09K2205/12; C09K2205/124; C09K2205/22; C09K2205/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3173872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |