Patent US3299256A successfully refreshed from Google Patents.
US3299256A
Expired / Lapsed
US
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Automatic counting device for counting particles
Assignee: Simon Carves Ltd
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Filing: 1963-03-20
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Granted: 1967-01-17
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Howe Charles
- 👤 James W Abson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:44
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/101; C; C12; C12M; C12M41/00; C12M41/30; C12M41/36; G01; G01N; G01N15/00; G01N15/10; G01N15/14; G01N15/1468
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN AUTOMATIC COUNTING AND/OR RECORDING DEVICE, COMPRISING MEANS TO DIRECT A CONCENTRATED LIGHT BEAM UPON A LIGHT-RESPONSIVE DEVICE, MEANS TO ROTATE A TRANSPARENT CONTAINER CONTAINING MATTER TO BE COUNTED AND/OR RECORDED IN A CIRCULAR HORIZONTAL PATH BETWEEN SAID LIGHT BEAM AND SAID LIGHT-RESPONSIVE DEVICE, AND MEANS PERIODICALLY OPERABLE TO ADVANCE SAID CONTAINER A PREDETERMINED DISTANCE IN A LINEAR DIRECTION AT THE END OF EACH COMPLETE REVOLUTION THEREOF; THE INTENSITY OF THE LIGHT FALLING ON SAID LIGHT-RESPONSIVE DEVICE BEING VARIED IN ACCORDANCE WITH VARIATIONS IN THE DENSITY OF THE MATTER PASSING THROUGH SAID LIGHT BEAM AND SAID VARIATIONS IN INTENSITY BEING ADAPTED TO ACTUATE A COUNTING AND/OR RECORDING DEVICE.
Claim 2
Dependent Claim
108 words
AN AUTOMATIC COUNTING AND/OR RECORDING DEVICE, COMPRISING MEANS TO DIRECT A CONCENTRATED LIGHT BEAM UPON A LIGHT-RESPONSIVE DEVICE, MEANS TO ROTATE A TRANSPARENT CONTAINER CONTAINING MATTER TO BE COUNTED AND/OR RECORDED IN A CIRCULAR HORIZONTAL PATH BETWEEN SAID LIGHT BEAM AND SAID LIGHT-RESPONSIVE DEVICE, AND MEANS PERIODICALLY OPERABLE TO ADVANCE SAID CONTAINER A PREDETERMINED DISTANCE IN A LINEAR DIRECTION AT THE END OF EACH COMPLETE REVOLUTION THEREOF; THE INTENSITY OF THE LIGHT FALLING ON SAID LIGHT-RESPONSIVE DEVICE BEING VARIED IN ACCORDANCE WITH VARIATIONS IN THE DENSITY OF THE MATTER PASSING THROUGH SAID LIGHT BEAM AND SAID VARIATIONS IN INTENSITY BEING ADAPTED TO ACTUATE A COUNTING AND/OR RECORDING DEVICE.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |