Patent US2931580A successfully refreshed from Google Patents.
US2931580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure spray cleaning apparatus
Assignee: Individual
•
Filing: 1956-01-23
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Granted: 1960-04-05
•
Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Lemart L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:46
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B05B7/0408; B05B7/12; B05B7/24; B05B7/26; B05B7/28; B05B7/30; B08; B08B; B08B3/00; B08B3/02; B08B3/026; B08B3/028; B08B2203/00; B08B2203/02; B08B2203/0217
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1141243A
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US1665224A
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US1658473A
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US2012139A
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US2239502A
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US2309247A
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US2231782A
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US2610433A
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US2562096A
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US2585092A
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US2675147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |