Patent US2366500A successfully refreshed from Google Patents.
US2706911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat conductivity manometer
Assignee: General Electric Co
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Filing: 1952-07-19
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Granted: 1955-04-26
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Expires: 1972-07-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert M Strong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:51
CPC Classifications
G; G01; G01L; G01L21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A VACUUM GAGE COMPRISING A FILAMENT, A CONTAINER IN WHICH SAID FILAMENT IS POSITIONED, A PACKING IN SAID CONTAINER SURROUNDING SAID FILAMENT, SAID PACKING BEING COMPOSED OF A HIGH MELTING ELECTRICALLY INSULATING GAS PERMEABLE SOLID HAVING A LARGE PROPORTION OF INTERSTITIAL SPACE, AND MEANS FOR CONNECTING THE INTERIOR OF SAID CONTAINER TO A SOURCE OF VACCUM TO BE MEASURED.
Claim 2
Dependent Claim
59 words
A VACUUM GAGE COMPRISING A FILAMENT, A CONTAINER IN WHICH SAID FILAMENT IS POSITIONED, A PACKING IN SAID CONTAINER SURROUNDING SAID FILAMENT, SAID PACKING BEING COMPOSED OF A HIGH MELTING ELECTRICALLY INSULATING GAS PERMEABLE SOLID HAVING A LARGE PROPORTION OF INTERSTITIAL SPACE, AND MEANS FOR CONNECTING THE INTERIOR OF SAID CONTAINER TO A SOURCE OF VACCUM TO BE MEASURED.
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) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |