Patent US1880177A successfully refreshed from Google Patents.
Patent US3500053A successfully refreshed from Google Patents.
US3500053A
Expired / Lapsed
US
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Container inspection device with transverse dual scan utilizing rotating reticle and plurality of concentric photocells
Assignee: Automatic Sprinkler Corp
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Filing: 1968-06-04
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Granted: 1970-03-10
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Expires: 1988-06-04
Abstract
No abstract record available.
Inventors
- 👤 Fredrick L Calhoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:18
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/90; G01N21/9009; B; B07; B07C; B07C5/00; B07C5/34; G01B; G01B11/00; G01B11/02; G01B11/06; G01N21/9018; G01N33/00; G01N33/0078; G01N33/0081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3425547A
Cited
US3411009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |