US3454078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for blower motor of furnace and air conditioner
Assignee: GLENN E ELWART
•
Filing: 1968-03-22
•
Granted: 1969-07-08
•
Expires: 1988-03-22
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Elwart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1906; G05D23/1912; G05D23/1927; G05D23/1928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3317136A
Cited
US3367408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |