US2980319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable record sensing and recording apparatus
Assignee: A Kimball Co
•
Filing: 1957-12-30
•
Granted: 1961-04-18
•
Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 John E Clemens
- 👤 Hubert W Dean
- 👤 Edward R Thomas
- 👤 William S Touchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:48
CPC Classifications
G; G06; G06K; G06K1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1839402A
Cited
USRE21133E
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US2018420A
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US2498896A
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US2394604A
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US2595889A
Cited
US2736379A
Cited
US2774429A
Cited
US2878872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |