Patent US3452901A successfully refreshed from Google Patents.
US3452901A
Expired / Lapsed
US
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Liquid dispensing device
Assignee: Oxford Laboratories Inc
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Filing: 1967-12-01
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Granted: 1969-07-01
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Expires: 1987-12-01
Abstract
No abstract record available.
Inventors
- 👤 William J Roach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:17
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/0005; B05B11/0062; B05B11/0064; B01; B01L; B01L3/00; B01L3/02; B01L3/0282; B05B11/01; B05B11/10; B05B11/1001; B05B11/1005; B05B11/1007; B05B11/1015; B05B11/1042; B05B11/1061; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |