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US3461192A
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Apparatus and method for obtaining test cores
Assignee: JOSEPH R DI STASIO
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Filing: 1966-12-22
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Granted: 1969-08-12
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Expires: 1986-12-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Di Stasio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:03
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/04; E; E02; E02D; E02D1/00; E02D1/02; E02D1/04; G01N33/00; G01N33/38; Y; Y10; Y10S; Y10S249/00; Y10S249/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |