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US3450455A
Expired / Lapsed
US
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Assignee: Technical Operations Inc
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Filing: 1966-03-03
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Granted: 1969-06-17
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 John K Landre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:11
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/59; G01N21/5907; G01N21/5911; H; H04; H04N; H04N3/00; H04N3/02; H04N3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE518070A
Cited
US2497042A
Cited
US2719457A
Cited
US2536718A
Cited
US3003407A
Cited
US3134297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |