Patent US2808721A successfully refreshed from Google Patents.
US2808721A
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Registering system for use in conjunction with testing machines
Assignee: TENIUS OLSEN TESTING MACHINE C
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Filing: 1951-06-11
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Granted: 1957-10-08
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Expires: 1971-06-11
Abstract
No abstract record available.
Inventors
- 👤 Robert S Strimel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:11
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/02; G01N3/06; G01N2203/00; G01N2203/02; G01N2203/0202; G01N2203/021; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |