US3093189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling apparatus
Assignee: Perfex Corp
•
Filing: 1960-09-28
•
Granted: 1963-06-11
•
Expires: 1980-09-28
Abstract
No abstract record available.
Inventors
- 👤 Ernest H Panthofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:41
CPC Classifications
F; F01; F01P; F01P5/00; F01P5/02; F28; F28D; F28D1/00; F28D1/02; F28D1/0233; F28D1/024; F28F; F28F9/00; F28F9/001; F28F9/002; F01P2070/00; F01P2070/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1533098A
Cited
US1819609A
Cited
US1843450A
Cited
US2085772A
Cited
US2413118A
Cited
US2358973A
Cited
US2728411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |