US3271562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporant source
Assignee: International Business Machines Corp
•
Filing: 1964-06-30
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Granted: 1966-09-06
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Gilbert C Roberts
- 👤 Giorgio G Via
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:09
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/243; C23C14/06; C23C14/14; C23C14/16; C23C14/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN A VACUUM DEPOSITION APPARATUS, AN EVAPORANT SOURCE COMPRISING AN EVAPORANT CHARGE VESSEL, SAID VESSEL COMPRISING A BOX STRUCTURE AND AN EVAPORANT CHARGE HEATER MOUNTED BY SAID BOX STRUCTURE, SAID HEATER COMPRISING A VERTICALLY FINNED STRUCTURE OF RESISTANCE METAL FORMED TO PROVIDE A PLURALITY OF VERTICALLY OPENING POCKETS, AND MEANS ON SAID HEATER AND ON SAID BOX STRUCTURE FOR MAINTAINING THE POCKETED CONFIGURATION OF SAID HEATER,
Claim 2
Dependent Claim
66 words
IN A VACUUM DEPOSITION APPARATUS, AN EVAPORANT SOURCE COMPRISING AN EVAPORANT CHARGE VESSEL, SAID VESSEL COMPRISING A BOX STRUCTURE AND AN EVAPORANT CHARGE HEATER MOUNTED BY SAID BOX STRUCTURE, SAID HEATER COMPRISING A VERTICALLY FINNED STRUCTURE OF RESISTANCE METAL FORMED TO PROVIDE A PLURALITY OF VERTICALLY OPENING POCKETS, AND MEANS ON SAID HEATER AND ON SAID BOX STRUCTURE FOR MAINTAINING THE POCKETED CONFIGURATION OF SAID HEATER,
References Cited (Backward Citations)
US2675973A
Cited
US3104178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |