US2853969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing electric resistors
Assignee: Erie Resistor Ltd
•
Filing: 1954-06-08
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Granted: 1958-09-30
•
Expires: 1974-06-08
Abstract
No abstract record available.
Inventors
- 👤 Drewett Arthur Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:04
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/455; C23C16/45561; H; H01; H01B; H01B1/00; H01C; H01C17/00; H01C17/06; H01C17/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
AN APPARATUS FOR THE PRODUCTION OF A THIN DEPOSIT UPON AN INSULATING SUPPORT BY DECOMPOSITION OF A GASEOUS MATERIAL AT LOW PRESSURE, SAID APPARATUS COMPRISING A CONTAINER FOR A LIQUID VAPOURISABLE HYDROCARBON, MEANS FOR INDUCING VAPOURISATION OF SAID HYDROCARBON TO PRODUCE SAID GASEOUS MATERIAL, A CALIBRATED POROUS ELEMENT OF SINTERED GLASS FOR ACCURATELY CONTROLLING THE RATE OF FLOW OF SAID GASEOUS MATERIAL, AN ENCLOSURE FOR
Claim 2
Independent Claim
65 words
AN APPARATUS FOR THE PRODUCTION OF A THIN DEPOSIT UPON AN INSULATING SUPPORT BY DECOMPOSITION OF A GASEOUS MATERIAL AT LOW PRESSURE, SAID APPARATUS COMPRISING A CONTAINER FOR A LIQUID VAPOURISABLE HYDROCARBON, MEANS FOR INDUCING VAPOURISATION OF SAID HYDROCARBON TO PRODUCE SAID GASEOUS MATERIAL, A CALIBRATED POROUS ELEMENT OF SINTERED GLASS FOR ACCURATELY CONTROLLING THE RATE OF FLOW OF SAID GASEOUS MATERIAL, AN ENCLOSURE FOR
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |