US3481544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile cleaning unit
Assignee: Individual
•
Filing: 1968-02-01
•
Granted: 1969-12-02
•
Expires: 1988-02-01
Abstract
No abstract record available.
Inventors
- 👤 Otto V Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:21
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1691192A
Cited
US2903189A
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US2855126A
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US2987259A
Cited
US3037707A
Cited
US3086713A
Cited
US3163880A
Cited
US3380658A
Cited
US3317142A
Cited
US3389860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |