Patent US3936810A successfully refreshed from Google Patents.
Patent US3052409A successfully refreshed from Google Patents.
US3052409A
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Assignee: Toledo Scale Corp
•
Filing: 1956-06-21
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Granted: 1962-09-04
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Expires: 1976-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Roger B Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:34
CPC Classifications
H; H03; H03K; H03K21/00; H03K21/08; Y; Y10; Y10S; Y10S177/00; Y10S177/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2376234A
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US2375665A
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US2431591A
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US2393186A
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US2616965A
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US2803448A
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US2761968A
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US2765426A
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US2841334A
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US2921469A
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US2938126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |