Patent US3384527A successfully refreshed from Google Patents.
US2805615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilators
Assignee: Loren Cook Co
•
Filing: 1954-10-04
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Granted: 1957-09-10
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Expires: 1974-10-04
Abstract
No abstract record available.
Inventors
- 👤 Rudy Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:32
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; F24F7/025; F04; F04D; F04D17/00; F04D17/08; F04D17/16; F04D17/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1767988A
Cited
US2188741A
Cited
US2355836A
Cited
US2548607A
Cited
US2526290A
Cited
US2666378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |