Patent US2733904A successfully refreshed from Google Patents.
US2733904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beach cleaning apparatus
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
•
Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:06
CPC Classifications
E; E02; E02F; E02F7/00; E01; E01H; E01H12/00; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/348; E02F3/3483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1943594A
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US2093148A
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US2296851A
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US2360282A
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US2368331A
Cited
US2549734A
Cited
US2609649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |