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US3470384A
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US
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Photometric gauge in which a test object is rotated about an axis disposed between a lamp means and an aperture means
Assignee: Gulf Research and Development Co
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Filing: 1965-11-26
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Granted: 1969-09-30
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Albert J Bodnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:20
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/24; G01B11/2408; G01B11/02; G01B11/06; G01B11/0616
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2433558A
Cited
US2441343A
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US2487629A
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US2895373A
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US2958254A
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US3245308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |