US2665625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilator assembly
Assignee: WOODLIN METAL PRODUCTS Co
•
Filing: 1950-04-10
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Granted: 1954-01-12
•
Expires: 1970-04-10
Abstract
No abstract record available.
Inventors
- 👤 Walter J Woodhams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00457; B60H1/00464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1245826A
Cited
US1550503A
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US1983979A
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US1955089A
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US2159516A
Cited
US2211367A
Cited
US2157609A
Cited
GB541434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |