US3143738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making a collimator for an X-ray beam
Assignee: General Electric Co
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Filing: 1960-05-31
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Granted: 1964-08-04
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 John E Bigelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/025; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD OF FORMING A COLLIMATOR FOR AN X-RAY BEAM, COMPRISING THE STEPS OF: PLACING AND ADHERING AN X-RAY ABSORBING FILM ON THIN LAMINAS OF A HEAT-SHRINKABLE PLASTIC WITH THE THICKNESS OF SAID FILM LESS THAN THE THICKNESS OF EACH OF SAID THIN PLASTIC LAMINAS; STACKING SAID PLASTIC LAMINAS IN PARALLEL RELATION AND SUPPORTING SAID LAMINAS ALONG TWO OPPOSITE EDGES UNDER COMPRESSION WITH SMALL SPACING BETWEEN SAID LAMINAS OVER THE ENTIRE AREAS OF SAID LAMINAS; APPLYING PRESSURE TO SAID STACK IN A DIRECTION PERPENDICULAR TO THE PLANES OF SAID
Claim 2
Independent Claim
89 words
THE METHOD OF FORMING A COLLIMATOR FOR AN X-RAY BEAM, COMPRISING THE STEPS OF: PLACING AND ADHERING AN X-RAY ABSORBING FILM ON THIN LAMINAS OF A HEAT-SHRINKABLE PLASTIC WITH THE THICKNESS OF SAID FILM LESS THAN THE THICKNESS OF EACH OF SAID THIN PLASTIC LAMINAS; STACKING SAID PLASTIC LAMINAS IN PARALLEL RELATION AND SUPPORTING SAID LAMINAS ALONG TWO OPPOSITE EDGES UNDER COMPRESSION WITH SMALL SPACING BETWEEN SAID LAMINAS OVER THE ENTIRE AREAS OF SAID LAMINAS; APPLYING PRESSURE TO SAID STACK IN A DIRECTION PERPENDICULAR TO THE PLANES OF SAID
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |