US3467178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer cooling apparatus
Assignee: Trane US Inc
•
Filing: 1966-12-27
•
Granted: 1969-09-16
•
Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Chester D Ware
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:55
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/10; F; F28; F28D; F28D21/00; F28D1/00; F28D1/02; F28D1/04; F28D1/047; F28D1/0477; F28D2021/0019; F28D2021/0028; F28D2021/0031; F28D7/00; F28D7/08; F28D7/082; F28D7/085; F28D7/087; F28D7/16; F28D7/1615; F28D7/1623; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1973070A
Cited
US2254917A
Cited
US2440556A
Cited
US2741990A
Cited
US3132493A
Cited
US3186513A
Cited
US3205938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |