US3374941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air blower
Assignee: Trane US Inc
•
Filing: 1964-06-30
•
Granted: 1968-03-26
•
Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Okress Ernest Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:53
CPC Classifications
F; F04; F04D; F04D33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3043977A
Cited
US3128378A
Cited
FR1301307A
Cited
US3241490A
Cited
US3156090A
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US3234432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |