US3445194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for providing an oxygen containing atmosphere
Assignee: Whirlpool Corp
•
Filing: 1963-11-05
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Granted: 1969-05-20
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Expires: 1983-11-05
Abstract
No abstract record available.
Inventors
- 👤 Jess W Thomas
- 👤 Joshua R C Brown
- 👤 James J Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:15
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/704; A23B2/7045; A61; A61L; A61L2/00; A61L2/16; A61L2/20; A61L2/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3203771A
Cited
US3205049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |