US2856948A
Expired / Lapsed
US
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Apparatus for controlling the total liquid content of an aggregate
Assignee: EDICK LAB Inc
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Filing: 1956-09-28
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Granted: 1958-10-21
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Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 John R Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:29
CPC Classifications
G; G05; G05D; G05D22/00; G05D22/02; B; B28; B28C; B28C7/00; B28C7/02; B28C7/022; B28C7/024; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499
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) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |