US2869335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning and heating systems
Assignee: Borg Warner Corp
•
Filing: 1955-06-27
•
Granted: 1959-01-20
•
Expires: 1975-06-27
Abstract
No abstract record available.
Inventors
- 👤 Robert G Werden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:22
CPC Classifications
F; F25; F25B; F25B1/00; F25B1/10; F24; F24F; F24F3/00; F24F3/001; F25B13/00; F25B2313/00; F25B2313/027; F25B2313/02791; F25B2400/00; F25B2400/13; F25B2400/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH132117A
Cited
US2318318A
Cited
US2434221A
Cited
US2474304A
Cited
US2556104A
Cited
US2619326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |