US3069993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilator blast closure
Assignee: Individual
•
Filing: 1960-06-07
•
Granted: 1962-12-25
•
Expires: 1980-06-07
Abstract
No abstract record available.
Inventors
- 👤 Jay R Allgood
- 👤 Robert F Swalley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:39
CPC Classifications
A; A62; A62B; A62B13/00; F; F16; F16K; F16K17/00; F16K17/006; Y; Y10; Y10S; Y10S454/00; Y10S454/902; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647
Claims Analysis
Total Claims: 0
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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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |