Patent DE584954C successfully refreshed from Google Patents.
US3418242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant composition
Assignee: EIDP Inc
•
Filing: 1965-05-18
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Granted: 1968-12-24
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Expires: 1985-05-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Bernhardt J Eiseman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:41
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2531373A
Cited
US3173872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |