Patent US2616355A successfully refreshed from Google Patents.
US2616355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable ventilator
Assignee: Individual
•
Filing: 1950-03-25
•
Granted: 1952-11-04
•
Expires: 1970-03-25
Abstract
No abstract record available.
Inventors
- 👤 Hilton H Mccabe
- 👤 John M Connell
- 👤 Merritt H Dailey
- 👤 Lawrence W Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:10
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/062
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |