US3663273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tilting variable speed rotary shadower
Assignee: Ladd Research Industries Inc
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Filing: 1970-11-16
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Granted: 1972-05-16
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Expires: 1990-11-16
Abstract
Abstract Method to effect uniform vapor deposition on a specimen by continuously exposing the specimen to a vapor beam while imparting precessional motion to the specimen, including positions wherein the specimen major surface faces said beam at 90* thereto and wherein the specimen edge portions are at 90* to the beam, and while variably shielding the specimen during its precessional motion.
Inventors
- 👤 John Halsted Porter
- 👤 William Alexander Ladd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:55
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/50; C23C14/505
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
30 words
The method of claim 1 wherein said specimen is orbited about said first axis through more than one revolution while said first axis is orbited once about said second axis.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |