Patent US3368873A successfully refreshed from Google Patents.
US3368873A
Expired / Lapsed
US
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Apparatus for providing a preserving atmosphere
Assignee: Whirlpool Corp
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Filing: 1963-10-17
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Granted: 1968-02-13
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Expires: 1983-10-17
Abstract
No abstract record available.
Inventors
- 👤 Marvin A Fuller
- 👤 Jack I Anderson
- 👤 Roy W Kruggel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:17
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/14; A; A23; A23B; A23B2/00; A23B2/70; A23B2/704; A23B2/7045; A23B2/708
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |