Patent US3415178A successfully refreshed from Google Patents.
US3415178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating system and device
Assignee: ILG IND Inc
•
Filing: 1967-05-04
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Granted: 1968-12-10
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Expires: 1987-05-04
Abstract
No abstract record available.
Inventors
- 👤 Ball Donald
- 👤 Gurney Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/04; F24F7/06; F24F11/00; F24F11/0001; F24F11/70; F24F11/72; F24F11/74; F24F11/75; F24F11/77; F24F2110/00; F24F2110/40; F24F2140/00; F24F2140/10; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3150584A
Cited
US3130908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |