Patent US3148544A successfully refreshed from Google Patents.
US3148544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methyl chloride analyzer probe
Assignee: Dow Chemical Co
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Filing: 1961-04-26
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Granted: 1964-09-15
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Expires: 1981-04-26
Abstract
No abstract record available.
Inventors
- 👤 Parke B Brown
- 👤 Edwin R North
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:34
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
A CLOG-FREE PROBE FOR USE IN THE DETERMINATION OF RESIDUAL GAS CONTENT IN A BODY F PLASTIC FOAM INTO WHICH SAID PROBE IS INSERTED COMPRISING A TUBE WITH A FLARED SLOTTED END, AND UNPERFORATED CAP-LIKE POINTED TIP AFFIXED OVER SAID END, THE FLARE OF SAID END PROVDING A CLOSE FIT
References Cited (Backward Citations)
US2141261A
Cited
US2374227A
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GB717229A
Cited
US2787903A
Cited
US2707616A
Cited
FR1126023A
Cited
US2904443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |