US2222497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for suspending ventilation tubing
Assignee: Individual
•
Filing: 1940-01-27
•
Granted: 1940-11-19
•
Expires: 1960-01-27
Abstract
No abstract record available.
Inventors
- 👤 Frank M Bins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:27
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/0254; E; E21; E21F; E21F17/00; E21F17/02; F24F13/0218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-11-19 | 1944-05-20 | 1944-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-19 | 1948-05-20 | 1948-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-19 | 1952-05-20 | 1952-11-19 | $7700.00 | Window Closed / Lapsed |