US3554739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloys and processes for their manufacture
Assignee: TECHNOLOGY UK
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Filing: 1967-09-06
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Granted: 1971-01-12
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Expires: 1987-09-06
Abstract
Abstract BULK ALLOYING PROCESS FOR THE PRODUCTION OF A MULTIPHASE ALLOY IN THE FORM OF AN ENGINEERING MATERIAL COMPRISING THE STEPS OF INTRODUCING AT LEAST ONE OF THE CONSTITUENTS INTO A CONTROLLABLE VACUUM OR LOW PRESSURE SYSTEM IN SOLID FORM, EVAPORATING THE SAID CONSTITUENT OR CONSTITUENTS IN A CONTROLLABLY HEATED SOURCE MEANS AND DEPOSITING THE VAPOUR ON A COLLECTOR MEANS AND ALLOYS PRODUCED THEREFROM.
Inventors
- 👤 Robert Lewis Bickerdike
- 👤 Francis Julian Bradshaw
- 👤 Garyth Hughes
- 👤 William Norman Mair
- 👤 Harry Christopher Ranson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:02
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/0005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |