US2762722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for coating by thermal evaporation
Assignee: Bausch and Lomb Inc
•
Filing: 1953-05-18
•
Granted: 1956-09-11
•
Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 Frank K Truby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:08
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF EVAPORATING A MATERIAL WHICH WILL SUBLIME WHICH COMPRISES FORMING IN A MASS OF THE MATERIAL AN OPENING HAVING AN INTERNAL WALL AND AN ORIFICE AND VAPORIZING SOME OF THE MATERIAL OF THE WALL BY HEATING PRIMARILY THE INTERNAL WALL OF SAID OPENING WHEREBY THE VAPOR OF THE MATERIAL WILL BE EMITTED FROM THE ORIFICE OF THE OPENING.
Claim 2
Independent Claim
60 words
A METHOD OF EVAPORATING A MATERIAL WHICH WILL SUBLIME WHICH COMPRISES FORMING IN A MASS OF THE MATERIAL AN OPENING HAVING AN INTERNAL WALL AND AN ORIFICE AND VAPORIZING SOME OF THE MATERIAL OF THE WALL BY HEATING PRIMARILY THE INTERNAL WALL OF SAID OPENING WHEREBY THE VAPOR OF THE MATERIAL WILL BE EMITTED FROM THE ORIFICE OF THE OPENING.
References Cited (Backward Citations)
US2378476A
Cited
US2469929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |