Patent US2546970A successfully refreshed from Google Patents.
Patent US3367191A successfully refreshed from Google Patents.
US3367191A
Expired / Lapsed
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Water sampling apparatus
Assignee: Individual
•
Filing: 1965-10-22
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Granted: 1968-02-06
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:11
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
WATER SAMPLING APPARATUS OF THE CHARACTER DESCRIBED COMPRISING: A CYLINDER; A PISTON WITHIN THE SAID CYLINDER; A SPRING URGING THE SAID PISTON TOWARD THE FIRST END OF THE SAID CYLINDER; LATCHING MEANS FOR RESTRAINING THE SAID PISTON ADJACENT THE SECOND END OF THE SAID CYLINDER AGAINST THE FORCE OF THE SAID SPRING; A FLEXIBLE PLASTIC BAG FOLDED WITHIN THE SAID CYLINDER ADJACENT THE SECOND END, ONE END OF THE SAID PLASTIC BAG COMPRISING A SEMI-RIGID DISK-SHAPED LID PORTION WHICH FITS SNUGLY OVER THE SECOND END OF THE
Claim 2
Dependent Claim
87 words
WATER SAMPLING APPARATUS OF THE CHARACTER DESCRIBED COMPRISING: A CYLINDER; A PISTON WITHIN THE SAID CYLINDER; A SPRING URGING THE SAID PISTON TOWARD THE FIRST END OF THE SAID CYLINDER; LATCHING MEANS FOR RESTRAINING THE SAID PISTON ADJACENT THE SECOND END OF THE SAID CYLINDER AGAINST THE FORCE OF THE SAID SPRING; A FLEXIBLE PLASTIC BAG FOLDED WITHIN THE SAID CYLINDER ADJACENT THE SECOND END, ONE END OF THE SAID PLASTIC BAG COMPRISING A SEMI-RIGID DISK-SHAPED LID PORTION WHICH FITS SNUGLY OVER THE SECOND END OF THE
References Cited (Backward Citations)
US3302464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |