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US3551934A
Expired / Lapsed
US
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Aircraft skin cleaning maintenance
Assignee: Turco Products Inc
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Filing: 1968-09-26
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Granted: 1971-01-05
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Expires: 1988-09-26
Abstract
Abstract THE EFFICIENT CLEANING OF AIRCRAFT ALUMINUM SKIN SURFACES WITHOUT ABRADING OR SCRATCHING IS REALIZED THROUGH THE USE OF A POLYURETHANE FOAM ROLLER LOADED WITH LIQUID DETERGENT WHICH IS ROTATIVELY APPLIED TO THE SKIN SURFACE FROM A GROUND LOCATION THROUGH MOUNTING OF THE ROLLER ON A BOOM.
Inventors
- 👤 Thomas G Franzreb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:32
CPC Classifications
B; B64; B64F; B64F5/00; B64F5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |