US3329341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilation system for buildings
Assignee: Individual
•
Filing: 1964-01-29
•
Granted: 1967-07-04
•
Expires: 1984-01-29
Abstract
No abstract record available.
Inventors
- 👤 Roland S Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:15
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/192
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
THE COMBINATION WITH A HOUSE, OF A SERIES OF VENTILATING FANS MOUNTED IN A WALL THEREOF, A THERMOSTAT IN SAID HOUSE, A PERIODIC TIMER, A RELAY CONTROLLED BY SAID TIMER, MANUALLY OPERATED SWITCHING MEANS FOR CONNECTING SAID TIMER OF ONE OR MORE SELECTED FANS TO OPERATE THE SAME, AND FOR CONNECTING, THROUGH THE CONTACTS OF SAID RELAY, ONE OR MORE OTHER SELECTED FANS TO SAID THERMOSTAT TO BE CONTROLLED THEREBY, WHEREBY, AT THE END OF ANY TIME PERIOD SAID TIME CONTROLLED FANS WILL STOP, AND THE RELAY WILL BE ACTUATED, AND UPON ACTUATION OF SAID RELAY SAID THERMOSTAT CONTROLLED FANS WILL BE AUTOMATICALLY PUT INTO
References Cited (Backward Citations)
US2261852A
Cited
US2349627A
Cited
US2601028A
Cited
GB727020A
Cited
US3128158A
Cited
US3142245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |