US2975702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Applied Research Corp
•
Filing: 1957-04-01
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Granted: 1961-03-21
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Expires: 1977-04-01
Abstract
No abstract record available.
Inventors
- 👤 Howard E Hutzelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:29
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US798460A
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US940087A
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US931170A
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US956891A
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US1530871A
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US1572233A
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US1606190A
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US1968900A
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US2211794A
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FR1084500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |