US2818831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for obtaining a uniform evaporated deposit
Assignee: RCA Corp
•
Filing: 1955-02-18
•
Granted: 1958-01-07
•
Expires: 1975-02-18
Abstract
No abstract record available.
Inventors
- 👤 Benjamin H Vine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:31
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AN EVAPORATOR SHIELD FOR EVAPORATING PHOTOCONDUCTIVE MATERIAL COMPRISING A HOLLOW TUBULAR METALLIC MEMBER, A HOLLOW TUBULAR MESH SCREEN HAVING ONE OPEN END CONNECTED TO ONE OPEN END OF SAID MEMBER, AND ANNULAR CONDUCTIVE RING CONNECTED TO THE OTHER OPEN END OF SAID SCREEN, AND A FLAT MESH SCREEN MEMBER CONNECTED TO SAID RING AND CLOSING THE APERTURE THEREIN.
Claim 2
Dependent Claim
58 words
AN EVAPORATOR SHIELD FOR EVAPORATING PHOTOCONDUCTIVE MATERIAL COMPRISING A HOLLOW TUBULAR METALLIC MEMBER, A HOLLOW TUBULAR MESH SCREEN HAVING ONE OPEN END CONNECTED TO ONE OPEN END OF SAID MEMBER, AND ANNULAR CONDUCTIVE RING CONNECTED TO THE OTHER OPEN END OF SAID SCREEN, AND A FLAT MESH SCREEN MEMBER CONNECTED TO SAID RING AND CLOSING THE APERTURE THEREIN.
References Cited (Backward Citations)
US2103623A
Cited
GB570200A
Cited
US2378476A
Cited
US2416211A
Cited
US2572881A
Cited
US2553289A
Cited
US2682479A
Cited
US2692574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |