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US2972192A
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US
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Assignee: Individual
•
Filing: 1959-04-24
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Granted: 1961-02-21
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Expires: 1979-04-24
Abstract
No abstract record available.
Inventors
- 👤 Atzberger Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:55
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/0025; G01B5/0028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US642750A
Cited
US677574A
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US2124603A
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US2268354A
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GB556532A
Cited
US2553525A
Cited
US2614333A
Cited
US2648134A
Cited
US2693033A
Cited
US2769241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |