US3012759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning units
Assignee: Carrier Corp
•
Filing: 1956-10-18
•
Granted: 1961-12-12
•
Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Hermann O Klarer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:08
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F1/00; F24F1/01; F24F13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB379430A
Cited
US2065873A
Cited
US2072833A
Cited
US2363945A
Cited
US2287267A
Cited
US2548665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |