US2660884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slime measuring unit
Assignee: Buckman Laboratories Inc
•
Filing: 1948-07-02
•
Granted: 1953-12-01
•
Expires: 1968-07-02
Abstract
No abstract record available.
Inventors
- 👤 Charles W Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:49
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/02; D21H21/04; G; G01; G01N; G01N33/00; G01N33/34; G01N33/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1019580A
Cited
US1178973A
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US1683489A
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US2090077A
Cited
US2351644A
Cited
US2444668A
Cited
US2519323A
Cited
US2484279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |