Patent US2997229A successfully refreshed from Google Patents.
US2997229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for removing moisture from a surface
Assignee: —
•
Filing: —
•
Granted: 1961-08-22
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Expires: 1978-08-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:01
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA503332A
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GB190618046A
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FR456012A
Cited
US1688345A
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GB340379A
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US1864803A
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US2166823A
Cited
GB506327A
Cited
US2261558A
Cited
FR893205A
Cited
US2630678A
Cited
US2737898A
Cited
FR1075248A
Cited
GB750305A
Cited
US2841182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |