US3292623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respirator
Assignee: Individual
•
Filing: 1964-02-24
•
Granted: 1966-12-20
•
Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:08
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/08; A61M16/0816; A61M16/0841; A61M16/0858; Y; Y10; Y10S; Y10S128/00; Y10S128/10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2218; Y10T137/2229; Y10T137/2234
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |