Patent US3418084A successfully refreshed from Google Patents.
US3418084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectangular fraction collector
Assignee: Instrumentation Specialties Co
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Filing: 1966-10-27
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Granted: 1968-12-24
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Expires: 1986-10-27
Abstract
No abstract record available.
Inventors
- 👤 John R Allington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:30
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
APPARATUS COMPRISING, (A) TWO SPACED, PARALLEL CHAMBERS HAVING FRONT AND REAR TRANSFER PASSAGEWAYS FORMED AT THE ENDS, (B) A PLURALITY OF SHUTTLES HAVING COMPLEMENTARY CAMMING SURFACES FORMED AT THE ENDS THEREOF, TWO REFERENCE SHUTTLES BEING DISPOSED IN OTHER PASSAGEWAYS AND THE REMAINING SHUTTLES DISPOSED IN ROWS IN THE CHAMBERS, ONE REFERENCE SHUTTLE BEING INITIALLY IN END ENGAGEMENT WITH THE REARMOST SHUTTLE DISPOSED IN ONE CHAMBER AND THE OTHER REFERENCE SHUTTLE BEING INITIALLY IN SIDE ENGAGEMENT WITH THE REARMOST SHUTTLE IN THE OTHER PASSAGEWAY, AND
Claim 2
Dependent Claim
84 words
APPARATUS COMPRISING, (A) TWO SPACED, PARALLEL CHAMBERS HAVING FRONT AND REAR TRANSFER PASSAGEWAYS FORMED AT THE ENDS, (B) A PLURALITY OF SHUTTLES HAVING COMPLEMENTARY CAMMING SURFACES FORMED AT THE ENDS THEREOF, TWO REFERENCE SHUTTLES BEING DISPOSED IN OTHER PASSAGEWAYS AND THE REMAINING SHUTTLES DISPOSED IN ROWS IN THE CHAMBERS, ONE REFERENCE SHUTTLE BEING INITIALLY IN END ENGAGEMENT WITH THE REARMOST SHUTTLE DISPOSED IN ONE CHAMBER AND THE OTHER REFERENCE SHUTTLE BEING INITIALLY IN SIDE ENGAGEMENT WITH THE REARMOST SHUTTLE IN THE OTHER PASSAGEWAY, AND
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) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |