Patent US2749797A successfully refreshed from Google Patents.
US2749797A
Expired / Lapsed
US
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Sample holder
Assignee: Bowser Inc
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Filing: 1952-07-10
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Granted: 1956-06-12
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Expires: 1972-07-10
Abstract
No abstract record available.
Inventors
- 👤 Walter M Harks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:53
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N2021/0346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A LIQUID TESTING MEANS, A STICK HAVING A BORE AND A COUNTERBORE, A SAMPLE HOLDER HAVING A CENTRAL SAMPLE CUP AND AN OVERFLOW CUP SURROUNDING IT, SAID OVERFLOW CUP BEING OF YIELDABLE MATERIAL AND FRICTIONALLY DISPOSED IN SAID COUNTERBORE AND SERVING TO LOCATE SAID CUP AND SAMPLE IN ALIGNMENT WITH THE BORE.
Claim 2
Dependent Claim
53 words
IN A LIQUID TESTING MEANS, A STICK HAVING A BORE AND A COUNTERBORE, A SAMPLE HOLDER HAVING A CENTRAL SAMPLE CUP AND AN OVERFLOW CUP SURROUNDING IT, SAID OVERFLOW CUP BEING OF YIELDABLE MATERIAL AND FRICTIONALLY DISPOSED IN SAID COUNTERBORE AND SERVING TO LOCATE SAID CUP AND SAMPLE IN ALIGNMENT WITH THE BORE.
References Cited (Backward Citations)
GB206995A
Cited
GB358533A
Cited
US2015949A
Cited
US2041290A
Cited
US2351282A
Cited
US2610541A
Cited
US2621557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |