Patent US3066044A successfully refreshed from Google Patents.
US3066044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromizing with improved utilization of gas
Assignee: Alloy Surfaces Co Inc
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Filing: 1959-02-19
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Granted: 1962-11-27
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Expires: 1979-02-19
Abstract
No abstract record available.
Inventors
- 👤 George A Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:51
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/30; C23C10/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE PROCESS OF CHROMIZING FERROUS METAL PARTS, WHICH COMPRISES PLACING THE FERROUSD METAL PARTS IN A RETORT IN THE PRESENCE OF PARTICLES OF CHROMIUM THROUGH 40 MESH AND IN THE PRESENCE OF A HALOGEN-CONTAINING GAS, THE RETORT BEING SEALED AGAINST ENTRANCE OF AIR WHILE HAVING AN ESCAPE PORT, MAINTAINING THE RETORT AND ITS CONTENTS AT A TEMPERATURE BETWEEN 1600 AND 2300 DEGREES F., RELATIVELY PHYSICALLY MANIPULATING THE PARTICLES OF CHROMIUM WITH RESPECT
Claim 2
Dependent Claim
72 words
THE PROCESS OF CHROMIZING FERROUS METAL PARTS, WHICH COMPRISES PLACING THE FERROUSD METAL PARTS IN A RETORT IN THE PRESENCE OF PARTICLES OF CHROMIUM THROUGH 40 MESH AND IN THE PRESENCE OF A HALOGEN-CONTAINING GAS, THE RETORT BEING SEALED AGAINST ENTRANCE OF AIR WHILE HAVING AN ESCAPE PORT, MAINTAINING THE RETORT AND ITS CONTENTS AT A TEMPERATURE BETWEEN 1600 AND 2300 DEGREES F., RELATIVELY PHYSICALLY MANIPULATING THE PARTICLES OF CHROMIUM WITH RESPECT
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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |