US3386368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilators
Assignee: Colt Ventilation and Heating Ltd
•
Filing: 1966-05-18
•
Granted: 1968-06-04
•
Expires: 1986-05-18
Abstract
No abstract record available.
Inventors
- 👤 Fielding Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; F24F7/025; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/12; F04D25/14; F24F13/00; F24F13/08; F24F13/10; F24F13/16; F24F7/007; F24F7/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1569845A
Cited
US2682826A
Cited
US2875678A
Cited
US2991927A
Cited
US2987983A
Cited
US3012495A
Cited
US3324784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |