US3014704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat and control circuit for heating, air conditioning and ventilating system
Assignee: Lennox Industries Inc
•
Filing: 1958-04-21
•
Granted: 1961-12-26
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Henry C Bierwirth
- 👤 Norman L Rutgers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:53
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/2754
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2162571A
Cited
US2231212A
Cited
US2191967A
Cited
US2182449A
Cited
US2299580A
Cited
US2344555A
Cited
US2561067A
Cited
US2830160A
Cited
US2802059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |