Patent US2977017A successfully refreshed from Google Patents.
US2977017A
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US
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Microfilm record card
Assignee: PCI Inc
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Filing: 1958-07-28
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Granted: 1961-03-28
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Leonard A Herzig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:48
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/02; G06K19/022; Y; Y10; Y10S; Y10S493/00; Y10S493/944; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1052; Y10T156/1056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1498895A
Cited
US1500025A
Cited
US2338189A
Cited
US2633655A
Cited
US2512106A
Cited
US2612711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |