Patent US3380306A successfully refreshed from Google Patents.
US3380306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for dividing an aggregate sample
Assignee: Individual
•
Filing: 1965-10-20
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Granted: 1968-04-30
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Bank The Northwestern National
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:57
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/02; G01N33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF DIVIDING A QUANTITY OF AGGREGATE INTO A PLURALITY OF REPRESENTATIVE FRACTIONAL PORTIONS, COMPRISING THE STEPS OF ROTATING A MULTIPLICITY OF CHANNELS ABOUT A COMMON CENTRAL AXIS, ADMITTING SAID AGGREGATE TO SAID COMMON CENTRAL AXIS WHILE SAID CHANNELS ARE ROTATING FOR DISPERSION OF SAID AGGREGATE THROUGH SAID CHANNELS, AND SEPARATELY COLLECTING THE MATERIAL FLOWING THROUGH AT LEAST TWO OF SAID CHANNELS.
Claim 2
Independent Claim
63 words
A METHOD OF DIVIDING A QUANTITY OF AGGREGATE INTO A PLURALITY OF REPRESENTATIVE FRACTIONAL PORTIONS, COMPRISING THE STEPS OF ROTATING A MULTIPLICITY OF CHANNELS ABOUT A COMMON CENTRAL AXIS, ADMITTING SAID AGGREGATE TO SAID COMMON CENTRAL AXIS WHILE SAID CHANNELS ARE ROTATING FOR DISPERSION OF SAID AGGREGATE THROUGH SAID CHANNELS, AND SEPARATELY COLLECTING THE MATERIAL FLOWING THROUGH AT LEAST TWO OF SAID CHANNELS.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |